5 Things to Know About Wi-Fi Cards in the Dell OptiPlex 7090 SFF

Only Dell-approved Wi-Fi cards work The M.2 2230 slot supports Wi-Fi 6 and Bluetooth 5.x modules, but the card must be on Dell’s whitelist to function.

Third-party cards often fail Installing a non-approved card can cause boot errors or the system to not recognize the hardware at all.

The slot is physically standard The M.2 2230 form factor is common, but Dell locks compatibility through firmware, not just physical fit.

Bluetooth is tied to the Wi-Fi card If you swap the card, Bluetooth may stop working unless the replacement is also Dell-approved.

Check Dell’s support site for the list Dell publishes approved part numbers for the OptiPlex 7090 SFF. Use those to avoid wasted purchases.