To buy a power supply (PSU) online, first using a tool like the Newegg PSU Calculator or OuterVision , then choose a unit with 100W–150W of extra headroom . 1. Determine Your Wattage Needs
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If you have a modern GPU (like the RTX 40 series), ensure the PSU is ATX 3.1 certified . This includes the native 12V-2x6 connector , eliminating the need for bulky adapters. 3. Choose Your Cable Style To buy a power supply (PSU) online, first
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