5 Things to Know About the Dell OptiPlex 7000 SFF Power Supply

The power supply is proprietary Dell uses a custom 180W or 260W PSU that is not compatible with standard ATX units.

You cannot upgrade the PSU The proprietary design means you are stuck with the wattage the system shipped with.

Higher-wattage models are rare The 260W version is less common, so most units are limited to 180W.

This limits GPU upgrades Without a standard PSU, you cannot install a graphics card that requires more power than the stock unit provides.

Plan your configuration at purchase Choose your CPU and RAM carefully upfront, because the PSU will not support major component changes later.