The Dell OptiPlex 5060 SFF offers a PCIe slot and M.2 Wi-Fi for expansion

What other upgradeable components does the OptiPlex 5060 SFF have?

Beyond the CPU and RAM, the OptiPlex 5060 SFF has a couple of useful upgrade paths. There’s an M.2 2230 slot for a Wi-Fi or Bluetooth card, and a full-height PCIe x1 slot for expansion cards — think a dedicated sound card, extra USB ports, or a network card. The SFF chassis gives you more room to play with than a mini PC would.