PSU
Power Supplies (PSU)
313 units from Chieftec, Deepcool, be quiet!, Gigabyte, Asus and Corsair. With 75 units carrying a ten-year warranty — the component with the longest warranties in the entire store.
- Chieftec 50 · Deepcool 35 · be quiet! 30 · Gigabyte 27 · Asus, ASRock, MSI, Corsair, XPG, Endorfy, Thermaltake
- 75 units with a 120-month, 18 with an 84-month and 49 with a 60-month warranty
- Modular, semi-modular and fixed-cable designs
- The component that protects all the others
Why buying cheap here does not pay
The power supply is the only component that, when it fails badly, can take the motherboard, graphics card and drives with it. Quality units include over-voltage, over-current and short-circuit protection that cuts out before the problem reaches anything else.
It is no accident that the longest warranties in the store are here: 75 units with ten years and another 18 with seven. A manufacturer does not offer a ten-year warranty on a product it expects to see returned.
How many watts you need
Add up the draw of the graphics card and processor, then add headroom. In practice: an office system with no graphics card is comfortable on 450-550W; a mid-range gaming system on 650-750W; a system with a high-end card wants 850W and above.
A power supply does not consume its rated wattage — it delivers what the system asks for. Headroom serves two purposes: operating in the efficiency sweet spot, and room for a future upgrade.
Efficiency, cables and connectors
Efficiency rating: it shows how much of the power drawn from the wall actually reaches the components rather than becoming heat. A higher class means less waste and usually quieter operation.
Modular or not: with modular units you connect only the cables you need, so the case stays tidy and air moves better. On fixed units the unused cables have to be hidden somewhere.
Connectors: the most common upgrade problem. Before buying a graphics card, make sure the supply has the plugs it requires — not merely enough watts.
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Frequently asked questions
- How many watts do I need?
- 450-550W for an office system, 650-750W for mid-range gaming, 850W and above for a high-end graphics card. Always leave headroom.
- Does an 850W unit consume more electricity?
- No. It delivers what the system asks for. The wattage is the maximum capability, not the consumption.
- What does modular mean?
- That the cables detach and you connect only the ones you need. It helps with tidiness and airflow, especially in small cases.
- Does it have the right connectors for my card?
- Check what the graphics card requires and compare it with the supply’s connector list. It is the most common obstacle in an upgrade.
- Why such long warranties?
- Because quality supplies are designed for a decade of service. 75 units here carry a 10-year warranty and another 18 carry 7 years.
This is the component you keep longer than any other — you usually carry it into your next build. Choose it around the requirements of your graphics card and leave headroom.