400w Computer Power Supply
Overview
Product sourcing insights & recommendations
The market for 400W computer power supplies is undergoing a specialized transformation in 2026. While high-end gaming shifts toward 1000W+ units to support AI-driven GPUs, the 400W segment is thriving in the Small Form Factor (SFF), HTPC, and Edge Computing niches Level1TechsPcworld.
Market Trends & Insights
* Efficiency Standards Pivot: The 80 Plus Gold certification is now the baseline for 400W units, with a growing focus on Cybenetics noise and efficiency ratings (A+ or higher) HwbustersFacebook.
* Standards Transition: The industry is moving from ATX 3.0 to ATX 3.1, introducing safer 12V-2x6 connectors that reduce melting risks previously seen in 12VHPWR adapters Hwbusters.
* Form Factor Innovation: Demand is surging for Flex-ATX and SFX form factors for NAS and mini-ITX chassis AlibabaAlibaba.
* Growth Forecast: The global PC power supply market is projected to reach approximately $21.1 Billion by 2033 with a CAGR of 8.54%, led by North American and Chinese demand FuturemarketreportResearchandmarkets.
Consumer Pain Points
* Cable Safety: Fears of cable overheating at GPU connection points drive users toward PSUs with native PCIe 5.1 support Hwbusters.
* Vampire Power: Consumers prioritize units with low standby power (under 0.1W) and "Zero RPM" fan modes for silent idle operation Facebook.
* Hold-up Time Regression: Enthusiasts are concerned about reduced hold-up times (12ms vs. 17ms) in some new ATX 3.1 models Hwbusters.
Commercial Benchmarks
Wholesale prices for 400W units vary significantly by certification and form factor:
* Standard ATX (80+ Bronze): $17.90 – $20.95 per unit (MOQ 300+) AlibabaAlibaba.
* Premium Flex-ATX (80+ Gold): $100.80 – $103.60 per unit (MOQ 5+) for industrial or server use Alibaba.
Based on these 2026 trends, would you like to:
400w Computer Power Supply 80 Plus Gold Atx 3.1
Products · 3 lists
New 1200W 1000W 800W Gold Medal 80plus+ATX3.1 Module Power Supply Desktop Computer Power Supply
AiLFond Technology Co., Limited🇭🇰HK2 yrs
Thermalright TR-KG750 750W 80PLUS Gold Full Modular ATX3.1 PCIe5.1 Desktop Gaming Power Supply in Stock Wholesale
TFDP New PC Components 80plus Gold Certified ATX 400W Power Supplies Units for Desktop Gaming Computer Server PSU in Stock 400w
HOA LONG HOME COMPANY LIMITED🇻🇳VN1 yr
SNOWMAN 400W High Quality Real PC Power Supply 80 Plus Gold ATX for Gaming PCs with PCI-E Interface 12V Output in Stock
Dongguan Wan Yuan Electronic Technology Co., Ltd.verified🇨🇳CN2 yrs
ATX Power Supply for PC Desktop Servers 400W 500W 80plus Gold Certified Cheap Stock
Shenzhen Tianfeng International Technology Co., Ltd.verified🇨🇳CN6 yrs
Enhance 400W 80Plus Gold FLEX ATX 1U Power Supply for NAS Chassis & 1U Server Case
Shenzhen Toploong Technology Co., Ltd.🇨🇳CN14 yrs
Thermalright TR-KG750-All-Japanese Embossed ATX3.1 Full Module Gold Medal Power Supply 750W Output 20+4Pin Interface for Desktop
Thermaltake Toughpower GT 750W ATX 3.1 Power Supply 80+ Gold Efficiency Smart-Zero-Fan Native 300W PCIe 5.1 Connector
Shenzhen Dangel Technology Limited Company🇨🇳CN5 yrs
Huntkey MVP K750 750W 80PLUS Gold Fully Modular ATX3.1 PCIe5.1 Gaming PC Power Supply
Hubei Jingpingou Technology Co., Ltd.🇨🇳CN1 yr
XP PC PSU PCIE5 Fully Modular Gaming 850-2000W PC Computer Power Supply 80+ Gold Server-grade Capacitor ATX 3.1 Low Noise PSU
Guangzhou AOJIE Science & Technology Co., Ltd.verified🇨🇳CN16 yrs
2025 New Stock Toughpower GT 750W ATX3.1 BK&WH Fully Modular 80 PLUS GOLD Certified Copper 24pin for Desktop
J Arc International Trade (guangzhou) Co., Ltd.verified🇨🇳CN3 yrs
GREENLEAF High Quality 750W/850W Fully Modular Gaming Power Supply ATX 3.1 PCIe 5.1 RGB Light Quiet Fan PC Power Supplies
Boluo Xurong Electronics Co., Ltd.verified🇨🇳CN5 yrs
Original Deepcool PQ1000G Computer Power Supply 80Plus Gold ATX12V V3.1 1000W Desktop Switching Power Supply
Shenzhen Rant Technology Co., Ltd.verified🇨🇳CN6 yrs
High Quality Fully Modular 650W/750W/850W ATX 3.1 Power Supply 80 Plus Gold Active PFC with Fan Cooler PCI-E 5.1 PSU for Desktop
Dongguan Tecnomall Technology Co., Limited🇨🇳CN6 yrs
Customize Wholesale 80Plus Gold 90% Efficiency ATX 3.1 Power Supply Unit 1000W PSU CE UL Certificates Desktop in Stock
Shenzhen Yijian Technology Co., Ltd.verified🇨🇳CN5 yrs
Thermalright TR-KG750 White 80plus Gold Psu Power Supplies 750W ATX3.1 PCIe5.1 for Pc and Atx Pc Power Supply Unit
Guangzhou Binju Electronic Technology Co., Ltd.🇨🇳CN1 yr
Delta Rated 850W Full Modular 80 PLUS Gold ATX3.1/PCIe5.1 Full-Voltage Server/Desktop Power Supply Supports 50 Series Stock
Beijing Lefei International Trade Co., Ltd.verified🇨🇳CN1 yr
Factory Price ATX3.1 PCIE5.1 750W 80 Plus Gold Fully Modular Computer Power Supply for Gaming PC and Workstation
Shenzhen Inloom Technology Co., Ltd.🇨🇳CN15 yrs
Manmu on Stock Certified Silent Multi-connector ATX3.1 PCIe5.1 RGB 750W 80 Plus Gold Power Supply 12V for Gaming PC Case
Guangzhou Manmu Technology Co., Ltd.🇨🇳CN4 yrs
TR-SG1000 ATX3.1 12V Hpwr Pcie 5.1 Rated Pc Power Supply High End Pc Psu 80 Plus GOLD 100-240V OEM/ODM Module Power Supply
400W 1U Flex Gold 80PLUS Server Power Supply for HTPC / 1U Rack case
Shenzhen Innovision Technology Co., Ltd.🇨🇳CN10 yrs
OEM 1000W 80Plus Gold PC Power Supply ATX3.1 Gaming PCI-E 5.0 Power Supply Suitable for 50/40 Series Graphics Cards
Shenzhen Yuchuangyun Technology Co., Ltd.🇨🇳CN1 yr
LOVINGCOOL 1000W ATX3.1 Power Supply PCIE5.1 Ready 80 Plus Gold Full Modular Universal Voltage for Gaming PC Bulk OEM
Dongguan Cooling Electronic Technology Co., Ltd.verified🇨🇳CN5 yrs
Hight Efficiency 80plus 400W Computer Power Supply PSU ATX PC Case Desktop Case
Guangzhou Leadway Electronics Co., Ltd.verified🇨🇳CN5 yrs
High Quality ATX Power Supply for PC Gaming 400W to 600W 24Pin Interface for Desktop and Server AC Input
Dunao (guangzhou) Electronics Co., Ltd.verified🇨🇳CN7 yrs
ESGAMING Manufacturer 80+ Standard 400W ATX Power Supply Non-Module 20+4 Pin PSU Gaming Pc Power for Desktop Computer Case
Esgaming (Foshan) Technology Co., Ltd.🇨🇳CN2 yrs
ATX Computer PSU 300W 400 W 500 W 50Hz Computer Power Supply with 12cm Fan PSU Desktop Switching Power Supply
Guangzhou Qianxi Electronic Co., Ltd.verified🇨🇳CN9 yrs
High Efficiency Computer ATX 400W Power Supply 80plus Bronze OEM PSU
Dongguan Soeyi Technology Limitedverified🇨🇳CN9 yrsATX Computer PSU 300W 400 W 500 W 50Hz Computer Power Supply with 12cm Fan PSU Desktop Switching Power Supply
High Efficiency Computer ATX 400W Power Supply 80plus Bronze OEM PSU
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Sources & References
26 sources cited · Verified industry data & reports
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