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JINBO 12V DC Power Supply 30W, 100V-240V AC to 12V DC LED Low Voltage Transformer,IP 67 Waterproof Converter Constant Voltage LED Driver for Lightings (30 Watts)
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  • $53.95 –
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  • $52.55 - $53.95
PSU For Dell 390 790 990 3010 7010 9010 250W Power Supply F250AD-00 L250AD-00 HU250AD D250AD-00 H250AD-00 H250ED-00
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  • $71.24 –
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IBM System x 750W High Efficiency Platinum AC Power Supply
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  • $321.75 –
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For ASTEC Power Supply NTQ123 3.3V 5V +-12V DC Stabilized Power Module
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  • $191.63 –
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Power Supplys High Efficiency 250W 300W 350W Power Supply Unit for 1U SFF PC, 8Pin+8Pin Connectors
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  • $196.04 –
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Power Supplys High Efficiency 250W 300W 350W Power Supply Unit for 1U SFF PC, 8Pin+8Pin Connectors
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  • $196.04 –
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550W Power Supply for HBA008-ZA1GT AcBel Asus M32CD-AS51 Upgrade
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  • $304.00 –
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Altronix Phenolic or Fiberglass Power Supply 6/12/24VDC @ 4A - SMP5
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  • $304.00 –
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New APW7 Power Supply PSU for Antminer Mining 1000-1800W 100-264V 10x PCI-E
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  • $307.00 –
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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