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865409-001 HPE 800W Flex Slot Platinum HOT Plug Low Halogen Power Supply KIT
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  • $478.00 –
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2400W mining Power Supply PC mining psu 2400w 12v mining bitcoin PSU with 92% enficiency Ethereum PSU MAX 2500W
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  • $228.03 - $229.43
2400W mining Power Supply PC mining psu 2400w 12v mining bitcoin PSU with 92% enficiency Ethereum PSU MAX 2500W
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  • $228.03 - $229.43
MW Mean Well HLG-80H-12 12V 5A 60W Single Output LED Switching Power Supply
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  • $239.00 –
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Original H825EF-02 825w PSU Server Power Supply for DELL T7910 T5810 T7810 W1FJK FT7T6
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  • $447.00 –
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Dual DC Power Switching Module Dual Low Voltage Differential Ideal Diode 15A UPS Uninterruptible Power Supply 1pcs
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  • $30.77 –
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SUTK 530W PC Power Mute Wear-Resisting 12V ATX Computer Case Power Supply
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  • $519.00 –
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Cosel AC6-E2E2C-08-HGW 3-Output 85-264VAC 120-350DC 650W Power supply
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  • $1,285.00 –
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For ASTEC Power Supply 3.3V 5V +-12V DC Stabilized Power Module NTQ123
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  • $133.92 –
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685Watt Power Supply PSU For Precision T7810 H685EF-00 CT3V3 W4DTF
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  • $518.00 –
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Replace Power? 320W Supply for Dell Vostro 200(Slim) 200S 400 220S SFF Watt
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  • $283.00 –
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Power Supply

The PSU (a.k.a. power supply unit) is virtually the heart of the computer. It is a vitally important part that delivers power to components that comprise the computer system. A high-quality power supply can make the difference between a perfect machine and an unreliable one. Getting to know the importance of the power supply is just the first step, and getting the right PSU for your system means looking beyond just enormous power output.

You need to consider the physical size of the power supply, and whether or not it fits your case's form factor. How many "rails" does it have, and how many peripherals it can connect with. Look at placement of your cables and whether they'll fit into your case, and if you can run them to all the places your PSU must connect. Properly chosen, your power supply will last you a long time!

Bestselling Power Supplies Reviews:

Anonymous
10/13/2026 7:46:02 AM
Great PSU!

“ This is an excellent power supply and the cables feel and look nice too. ”

SeaSonic FOCUS GX ATX 3 (2024) GX-1000 1000 W ATX 3.1 80 PLUS GOLD Certified Full Modular Power Supplies
Mario g.
10/6/2026 11:13:39 AM
Great product

“ Bang for buck PSU for my sons first gaming pc ”

ASRock PRO Series PRO-750G 750 W ATX 3.1 Compatible 80 PLUS GOLD Certified Power Supply
Anonymous
9/25/2026 11:30:00 AM
Great product, reasonable cost, prompt shipping.

“ The ASRock PRO 850W Gold was purchased at a reasonable cost, shipped timely, and fits easily into my mid-ATX tower. ”

ASRock PRO Series PRO-850G 850 W ATX 3.1 Compatible 80 PLUS GOLD Certified Power Supply
Anonymous
9/22/2026 11:54:52 AM
Was easy to install, just look out for 8 pin cable!

“ Works great and fits well in my older PC! ”

CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors - Cybenetics Gold Efficiency