Are you in search of the perfect power supply unit (PSU) for your computer in 2023? Look no further! In this article, we have curated a list of the 11 best 400W PSUs available in the market. A reliable and efficient PSU is crucial for ensuring stable power delivery to your components, enabling optimal performance and longevity for your system. We have carefully selected these PSUs based on their overall quality, efficiency ratings, reliability, and customer reviews. Whether you are a gamer, content creator, or a regular computer user, our expert recommendations will guide you in finding the ideal PSU to meet your power requirements.
Overall Score: 8.5/10
The RD RD6006PW 60V 6A DC DC Step Down Power Supply Whole Set is the perfect kit for hobbyists and DIY enthusiasts. This kit includes all the necessary components, but requires assembly. With a user-friendly interface and various control options, including APP control and PC software, you have full control over the RD6006PW. The output voltage range is 0-60.000V and the output current range is 0-6.0000A, providing you with flexibility for your projects. The kit also comes with a backup fuse for easy replacement. The RD RD6006PW is compatible with both micro USB and AC power cable connections. Please note that the default input for the power supply is 220V AC, but can be changed to 110V AC. Overall, this kit provides a reliable and customizable power supply solution.
Key Features
- RD6006PW full kit with 3 parts for assembly
- Supports APP control and micro USB connection
- Output voltage range: 0-60.000V, output current range: 0-6.0000A
- Backup fuse included for easy replacement
- User-friendly interface with multiple control options
Specifications
- Dimension: 12.20Lx7.09Wx3.54H
Pros
- Complete kit with all necessary wires and parts
- Includes Wi-Fi module and battery charging feature
- Firmware has safety features such as current cutoff and temperature probe
Cons
- S400 case lacks external serviceable fuse
- RD6006PW module does not fit case well
The RD RD6006PW 60V 6A DC DC Step Down Power Supply Whole Set offers a versatile and customizable power supply solution for hobbyists and DIY enthusiasts. With the ability to assemble the kit according to your needs and control the power supply through various methods, such as APP control and PC software, you have full flexibility and convenience. The inclusion of features like Wi-Fi connectivity, battery charging, and safety measures like current cutoff and temperature probe further enhance the functionality of this power supply. While the S400 case may lack an external serviceable fuse and the RD6006PW module may not fit perfectly, these minor drawbacks can be easily addressed. Overall, the RD RD6006PW is a reliable and value-packed option for your power supply needs.
Overall Score: 8/10
The RD RD6006W 60V 6A DC DC Step Down Power Supply Whole Set offers a versatile and efficient solution for power supply needs. This full kit includes three parts that you can assemble, with support for APP control and micro USB connection to PC software. The user-friendly interface and keypad control make it easy to operate, while the DIY display style allows for customization. The power supply is compatible with Android and iOS mobile phone operating systems, as well as PC systems. With its compact dimensions, this power supply is suitable for a variety of applications. The RD RD6006W power supply receives positive reviews for its performance and accuracy.
Key Features
- Full kit with three parts that can be assembled
- Supports APP control and micro USB connection to PC
- User-friendly interface with keypad control
- Compatible with Android and i OS mobile phone operating systems
- Compact dimensions for versatile use
Specifications
- Dimension: 12.20Lx7.09Wx3.54H
Pros
- Versatile and efficient power supply solution
- Supports APP control and PC software connection
- User-friendly interface with customization options
- Compact dimensions for easy integration
Cons
- Incompatibility issues with certain operating systems
- Limited availability of manufacturer support
Overall, the RD RD6006W 60V 6A DC DC Step Down Power Supply Whole Set is a reliable and versatile solution for various power supply needs. It offers convenient features like APP control and PC software connection, allowing for easy operation and customization. The compact dimensions make it suitable for different applications. While there may be some incompatibility issues with certain operating systems, the performance and accuracy of this power supply have received positive reviews. For those in need of a reliable and customizable power supply, the RD RD6006W 60V 6A DC DC Step Down Power Supply Whole Set is worth considering.
Overall Score: 7/10
The 400W Power Supply Flex ATX is a fully modular PSU designed for efficient and low-noise power supply for gaming servers and desktops. It supports the standard Flex ATX form factor and has a voltage range of 90V-264V. With its continuous 400W power output and Japanese main condenser, it ensures unwavering power and reliability. The power supply features a class-leading single +12V rail for better efficiency, wake-from-sleep times, and low-load efficiency. It has a sleek black paint shell with strong heat dissipation and moisture protection. However, some reviewers noted that it doesn't mount in the standard PSU slot and can be a bit noisy. Overall, it is a reliable choice for power needs with a customer rating of 4.2/5.
Key Features
- Fully modular PSU 400W
- Supports the standard Flex ATX form factor
- 400W continuous power output
- Class leading single +12V rail
- Assembled with black paint shell
- Strong heat dissipation and moisture protection
Specifications
- Color: Black
- Dimension: 6.69Lx3.15Wx1.57H
- Size: 170x80x40mm
Pros
- Efficient and low-noise power supply
- Fully modular cabling for easy customization
- Reliable power output and Japanese main condenser
- Sleek and durable design with strong heat dissipation
Cons
- Doesn't mount in the standard PSU slot
- Can be a bit noisy
The 400W Power Supply Flex ATX is a reliable and efficient choice for gaming servers and desktops. With its fully modular cabling and strong heat dissipation, it offers easy customization and enhanced durability. While it may not mount in the standard PSU slot and can be a bit noisy, it provides reliable power output and excellent efficiency. The power supply’s sleek design and moisture protection add to its overall value. However, it is worth considering the power requirements of your system before purchasing. Overall, it is a solid investment for those looking for a quality power supply for their gaming or server setup.
Overall Score: 8/10
The Redragon PSU015 80+ Platinum 750 Watt SFX Fully Modular Power Supply is a high-quality and feature-rich product that offers excellent performance and reliability. With its 80 Plus Platinum Certification, this power supply ensures cooler case temperatures, higher energy efficiency, and less noise. It is built with 100% Japanese Capacitors, ensuring great reliability and durability for maximum powering stability. Equipped with a Zero RPM Mode fan, it operates quietly, only activating when the temperature reaches a certain level. The compact Mini SFX size with an ATX compatible panel allows for wide chassis compatibility and provides a tidy cable management system with its flat white fully modular cables. Overall, the Redragon PSU015 is a top-notch power supply that offers excellent performance, reliability, and efficiency.
Key Features
- 80 Plus Platinum Certification
- 100% Japanese Capacitors
- Zero RPM Mode fan
- Compact Mini SFX Size
- Upgraded PCIe 5.0 ready and ATX 3.0 port
- Mainstream LLC resonant + DC-DC structure
- Flat White Fully Modular Cables
Specifications
- Size: 750 Watts
Pros
- High energy efficiency and less noise
- Reliable and durable with Japanese Capacitors
- Quiet operation with Zero RPM Mode fan
- Wide chassis compatibility with compact size
- Excellent performance for high-performance graphics cards
- Efficient and optimized cable management
Cons
- Does not include 12VHPWR PCI-e 5.0 Cable
- RGB lighting not synchronized with motherboard
The Redragon PSU015 80+ Platinum 750 Watt SFX Fully Modular Power Supply is a solid choice for any computer or tech enthusiast. It offers top-tier performance, reliability, and efficiency with its 80 Plus Platinum Certification and 100% Japanese Capacitors. The Zero RPM Mode fan ensures quiet operation, while the compact size and ATX compatible panel allow for easy installation and cable management. The power supply’s compatibility with high-performance graphics cards and its fully modular cables make it an excellent option for gaming setups. However, the absence of the 12VHPWR PCI-e 5.0 Cable and lack of RGB synchronization with the motherboard may be downsides for some users. Overall, the Redragon PSU015 is a reliable and high-performing power supply that delivers on its promises.
Overall Score: 9/10
The Thermaltake Toughpower GX1 80+ Gold 600W Power Supply is a high-quality and reliable option for your computer. With its 80 Plus Gold certification, it offers excellent efficiency and supports power savings. The non-modular connectors make installation simple, and the ultra quiet 120mm fan ensures silent operation. This power supply features main Japanese capacitors, low ripple noise, and a single +12V rail design for stable and reliable power. It also offers industry grade protections for added safety. With a 5-year warranty, you can trust in its longevity. Whether you're a gamer, content creator, or everyday computer user, the Thermaltake Toughpower GX1 80+ Gold 600W Power Supply is a top choice.
Key Features
- Certified gold – supporting 80 Plus Gold efficiency
- Non modular connectors for easy installation
- Ultra quiet 120mm fan for silent operation
- Main Japanese capacitors for performance and reliability
- Low ripple noise for stable power supply
- Single +12V rail design for GPU demands
- (OPP), (OVP), (UVP), and (SCP) protections
- 5-year warranty
Specifications
- Dimension: 2.83Lx1.55Wx2.48H
- Size: 600W
Pros
- High efficiency and energy savings
- Simple installation with non-modular connectors
- Silent operation with ultra quiet fan
- Reliable performance with main Japanese capacitors
- Stable power supply with low ripple noise
- Great GPU support with single +12V rail
- Added safety with industry grade protections
- Long-lasting with 5-year warranty
Cons
- Cables could be longer for larger gaming builds
- May require cable extensions for some setups
The Thermaltake Toughpower GX1 80+ Gold 600W Power Supply is an excellent option for anyone in need of a reliable and efficient power supply. With its high efficiency, silent operation, and industry grade protections, it ensures stable and safe power delivery to your computer components. The main Japanese capacitors and low ripple noise contribute to its performance and reliability, while the non-modular connectors make installation hassle-free. While the cable length may not be ideal for larger gaming builds, it offers a competitive price-to-performance ratio and comes with a 5-year warranty for added peace of mind. If you’re looking for a top-quality power supply that won’t disappoint, the Thermaltake Toughpower GX1 80+ Gold 600W Power Supply is a great choice.
Overall Score: 8.5/10
The Thermaltake Toughpower GF A3 650W Power Supply is a high-quality, reliable choice for computer enthusiasts. With its 80 Plus Gold certification and compatibility with Intel ATX 3.0 standards, it offers efficient power delivery and meets the latest graphics card requirements. The power supply features a high amperage single +12V rail and uses high-class technologies for stable performance. It also comes with fully modular low-profile flat cables, allowing for easy cable management. The black color and compact dimensions make it a sleek addition to any system. Backed by a 10-year warranty, this power supply provides peace of mind and reliable power for your computer.
Key Features
- 80 Plus Gold Certified & Fully Compatible with Intel ATX 3.0 Standards
- PCIe Gen 5.0 Ready
- Made to Comply with the Latest Graphics Cards
- High Amperage Single +12V Rail & High-Class Technologies
- Fully Modular Low-Profile Flat Cables
Specifications
- Color: Black
- Dimension: 5.90Lx5.50Wx3.40H
- Size: 650W
Pros
- 80 Plus Gold certification for efficient power delivery
- Fully modular design for easy cable management
- High amperage single +12V rail for stable performance
- Comes with PCIe Gen 5.0 connector for future upgrades
- Backed by a 10-year warranty for peace of mind
Cons
- Possible quality issue with fan noise reported by some users
The Thermaltake Toughpower GF A3 650W Power Supply is a reliable and efficient choice for computer enthusiasts. Its 80 Plus Gold certification ensures efficient power delivery, and its fully modular design allows for easy cable management. The high amperage single +12V rail and high-class technologies provide stable performance, making it suitable for the latest graphics cards. While some users have reported fan noise issues, the power supply comes with a 10-year warranty for added peace of mind. Overall, this power supply offers excellent value for the price and is a great investment for those looking to upgrade their system.
Overall Score: 8/10
The 80 Plus Gold Power Supply APFC 750W is a fully modular ATX computer gaming power supply PSU that offers excellent performance and reliability. With its 80+ Gold certification, it provides up to 91% operating efficiency under typical loads, resulting in less power consumption and lower temperatures. The fully modular design allows for easy cable management, reducing clutter and improving airflow. The 120mm silent RGB fan ensures precise airflow and ultra-quiet operation. The power supply also features eye-catching RGB lighting with 25 preset modes and a memory function. With a five-year warranty and electrical protection, this power supply is a reliable choice for gamers and computer enthusiasts.
Key Features
- 80+ Gold Certified: 750W PSU Provides up to 91% or higher operating efficiency
- Fully Modular Design: Full cable management for maximum build convenient
- Precise Air Flow: 750 watt power supply fan with 120mm Stacked fin array
- Eye-Catching RGB Light: Build with 25 smart preset RGB lighting modes
- 5 Years Warranty: Five-year warranty from the date of purchase
Specifications
- Color: Rgb
- Size: 750W
Pros
- High operating efficiency
- Fully modular design for easy cable management
- Quiet operation with precise airflow
- Eye-catching RGB lighting with preset modes
- Long five-year warranty
Cons
- Some customers experienced power-related issues
The 80 Plus Gold Power Supply APFC 750W is a reliable and efficient choice for gamers and computer enthusiasts. Its 80+ Gold certification ensures high operating efficiency, resulting in lower power consumption and temperatures. The fully modular design allows for easy cable management, reducing clutter and improving airflow. The silent RGB fan provides precise airflow while maintaining quiet operation. The eye-catching RGB lighting adds a touch of style to any build. With a five-year warranty, this power supply offers peace of mind. However, some customers have experienced power-related issues, so it’s important to consider individual needs and preferences.
Overall Score: 8.5/10
Upgrade your computer's power supply with the Thermaltake Toughpower PF3 ATX 3.0 1050W Power Supply. This fully modular power supply is packed with features such as compatibility with Intel ATX 3.0 standards, PCIe Gen 5.0 readiness, and 80 PLUS Platinum certification for efficient power delivery. With a compact design and a 10-year warranty, this power supply is built to last. Its black color and dimensions of 5.50Lx5.90Wx3.40H make it a versatile choice for any computer setup. The Thermaltake Toughpower PF3 ATX 3.0 1050W Power Supply is highly rated by customers and offers reliable and efficient performance. Get the power you need for your high-performance computer with this top-notch power supply.
Key Features
- Fully Compatible with Intel ATX 3.0 Standards
- PCIe Gen 5.0 Ready
- Made to Comply with the Latest Graphics Cards
- 80 PLUS Platinum Certified
- Compact Design with 140mm Depth
Specifications
- Color: Black
- Dimension: 5.50Lx5.90Wx3.40H
- Size: 1050W
Pros
- Fully compatible with Intel ATX 3.0 standards
- Compact design with 140mm depth
- 80 PLUS Platinum certification for efficient power delivery
- Comes with a 10-year warranty
- Highly rated by customers
Cons
- Some customers had issues with included cables
- Lack of EU type cable for international customers
- Excessive number of molex connectors
The Thermaltake Toughpower PF3 ATX 3.0 1050W Power Supply is a reliable and efficient choice for upgrading your computer’s power supply. With its compatibility with Intel ATX 3.0 standards, PCIe Gen 5.0 readiness, and 80 PLUS Platinum certification, this power supply delivers stable and efficient power to your system. The compact design and 10-year warranty make it a durable choice that will last. While some customers have had issues with the included cables and lack of international cable options, overall, this power supply has received positive reviews. If you’re looking for a high-quality power supply for your computer, the Thermaltake Toughpower PF3 ATX 3.0 1050W Power Supply is worth considering.
Overall Score: 7/10
The Apevia ATX-ES700-WH Essence 700W ATX Semi-Modular Gaming Power Supply is a reliable and efficient power supply for your gaming needs. It features a white sandblasted casing for a sleek look. With support for Dual/Quad/Multi-core CPUs and a single 12V output, it can handle higher power usage. The power supply comes with various connectors for easy installation and cable management. It also includes a auto-thermally controlled 120mm black fan for effective cooling. Additionally, it provides heavy-duty protections against short-circuit, over-current, over-voltage, over-power, under-voltage, and over-temperature. Overall, the Apevia ATX-ES700-WH Essence 700W ATX Semi-Modular Gaming Power Supply is a reliable choice for gamers.
Key Features
- Apevia 700W Essence ATX Semi-Modular Gaming Power Supply with white sandblasted casing
- Supports Dual/Quad/Multi-core CPUs. Supports single 12V output for higher power usage.
- Connectors: 1 x 20/24pin Main Power, 1 x 4+4pin 12V, 2 x PCI 6+2pin, 4 x SATA, 4 x Peripheral, 1 x Floppy
- Auto-thermally controlled 120mm black fan. Output: +3.3V@16A, +5V@20A, +12V@53A, -12V@0.5A, +5VSB@2.5A
- Heavy-duty protections: Short-Circuit/Over-Current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections
Specifications
- Dimension: 5.90Lx6.30Wx3.40H
Pros
- Reliable and efficient power supply for gaming
- Sleek white sandblasted casing
- Supports higher power usage with a single 12V output
- Various connectors for easy installation and cable management
- Auto-thermally controlled black fan for effective cooling
- Heavy-duty protections against various electrical issues
Cons
- Mixed customer reviews with some reporting defective units
- Limited customer support
The Apevia ATX-ES700-WH Essence 700W ATX Semi-Modular Gaming Power Supply is a decent choice for gamers who want a reliable power supply with sufficient power output. It features a sleek white sandblasted casing and offers support for higher power usage. With its various connectors, it allows for easy installation and cable management. The auto-thermally controlled black fan helps in maintaining optimal temperature. Although there are mixed customer reviews, it can be a good option for those on a budget. However, due to some reported defective units, it may be wise to consider other brands for more reliability.
Overall Score: 8.5/10
The Ptcliss 550W GD550S ATX Gaming PC Power Supply is a non-modular power supply that offers excellent performance for gaming PCs. With its 550-watt capacity and 80 PLUS Bronze certification, it provides 85% efficiency or higher under typical loads. The power supply features a 120mm ultra-quiet fan for optimal cooling performance. It has a variety of connectors, including 24-pin, ATX 12V 4+4-pin, PCI-E 6+2-pin, Molex, and SATA 4-pin. Additionally, it offers heavy-duty protection features such as OVP, UVP, OPP, SCP, and Over Current Protection. The power supply comes in a sleek black color and has dimensions of 5.50Lx5.90Wx3.35H.
Key Features
- 550watt non-modular ATX gaming pc power supply
- 80 PLUS Bronze certification with 85% efficiency
- 120mm ultra-quiet fan for excellent cooling
- Multiple connectors for various devices
- Heavy-duty protection features
Specifications
- Color: Black
- Dimension: 5.50Lx5.90Wx3.35H
Pros
- High efficiency for power savings
- Quiet fan for noise reduction
- Good variety of connectors
- Strong protection features
Cons
- Non-modular design may lead to cable clutter
The Ptcliss 550W GD550S ATX Gaming PC Power Supply is a reliable choice for gamers seeking an efficient and powerful power supply. With its 80 PLUS Bronze certification and high efficiency, it provides excellent power delivery while saving energy. The ultra-quiet fan ensures optimal cooling performance without adding unnecessary noise to your system. The variety of connectors ensures compatibility with various devices, while the heavy-duty protection features protect your PC from potential damage. The non-modular design may lead to cable clutter, but overall, this power supply offers great value for its price.
Overall Score: 8/10
The Thermaltake Toughpower SFX 600W power supply is a compact and reliable option for small computer builds. With its 80+ Gold certification and high-quality Japanese capacitors, it provides efficient and stable power delivery. The zero rpm smart fan control ensures quiet operation, and the included ATX PSU bracket makes installation easy. It comes with a 7-year warranty for added peace of mind. The only downside is the short length of the cables, which may not be suitable for larger builds. However, this can be easily fixed with CableMod extensions. Overall, the Thermaltake Toughpower SFX 600W is a solid choice for those looking for a compact and powerful power supply.
Key Features
- 80 plus gold Certified
- Zero rpm smart fan control
- ATX PSU bracket included
- High quality Japanese capacitors
- 7 year Warranty
Specifications
- Dimension: 3.70Lx6.24Wx7.00H
- Size: 600W
Pros
- 80+ Gold efficiency
- Quiet operation with smart fan control
- High-quality Japanese capacitors
- Compact size for small builds
- 7-year warranty
Cons
- Short cables may not be suitable for larger builds
The Thermaltake Toughpower SFX 600W power supply offers reliable performance in a compact form factor. With its 80+ Gold certification, efficient power delivery, and quiet operation, it is a great choice for small computer builds. The inclusion of high-quality Japanese capacitors and a 7-year warranty further add to its appeal. However, the short length of the cables may limit its compatibility with larger builds. Despite this drawback, the Thermaltake Toughpower SFX 600W remains a solid option for those seeking a powerful and reliable power supply for their compact systems.
Buyer's Guide: 400 PSU
Are you in the market for a new 400 PSU? Look no further! We have compiled a comprehensive buyer's guide to help you make an informed decision. Whether you're a tech-savvy enthusiast or a casual user, this guide will provide you with all the necessary information to find the perfect PSU for your needs. So, let's dive right in!
Things to Consider
When purchasing a 400 PSU, there are a few important factors to keep in mind. Consider the following:
- Power Output: A 400 PSU typically delivers 400 watts of power. Ensure that this output is sufficient for your system's requirements to avoid any power-related issues.
- Efficiency Rating: Look for a PSU with a high efficiency rating. Efficiency refers to how well the PSU converts AC power into DC power, with higher ratings indicating less wasted energy and lower utility bills.
- Modularity: Some PSUs come with modular cables that can be connected as needed. This allows for a cleaner cable management system, reducing clutter inside your PC case.
- Form Factor: Ensure that the PSU you choose matches the form factor of your PC case. The most common form factors are ATX, Micro ATX, and Mini ATX.
- Connectors: Check the PSU's connectors to ensure compatibility with your components. Popular connectors include SATA, PCIe, and CPU power connectors.
Benefits of a 400 PSU
Investing in a reliable 400 PSU offers numerous advantages for your system. Here are a few benefits to consider:
- Adequate Power Supply: With a 400 PSU, you can provide enough power to your computer to ensure stable operation without overloading the system.
- Energy Efficiency: Modern 400 PSUs are designed to be energy efficient, reducing energy consumption and keeping your electricity bills in check.
- Better Component Compatibility: A high-quality 400 PSU often provides a wide range of connectors and compatibility options, ensuring connectivity with various components.
- Enhanced System Stability: A robust power supply helps maintain consistent voltage levels, preventing sudden power fluctuations that can harm your computer's delicate hardware.
- Quiet Operation: Some 400 PSUs come with advanced cooling mechanisms, reducing fan noise and ensuring a quieter computing experience.
Frequently Asked Questions about 11 Best 400 Psu For 2023
To gauge your system’s power needs, check the power draw specifications of your components, including the CPU, GPU, and any additional peripherals. Add these values together to estimate the overall power requirements.
Different PSUs can vary in terms of quality and performance. It’s crucial to read product reviews, examine efficiency ratings, and choose reputable brands to ensure a reliable PSU that meets your needs.
Absolutely! A 400 PSU can support most gaming PCs, especially those with a single GPU setup. However, for high-end gaming systems with multiple GPUs or heavy overclocking, a higher-wattage PSU may be more suitable.
Efficiency ratings indicate how effectively a PSU converts AC power into DC power. Higher ratings mean less wasted energy and reduced heat generation, resulting in lower electricity bills and a more environmentally friendly system.
Modular cables offer flexibility and easier cable management. While not necessary, they contribute to keeping the inside of your PC case tidy and ensure better airflow, which can lead to improved cooling and overall performance.
