What other upgradeable components does the HP EliteDesk 800 G5 Mini have?

The HP EliteDesk 800 G5 Mini has two SO-DIMM slots for RAM, an M.2 2230 slot for Wi-Fi or Bluetooth, and two storage positions — one M.2 NVMe and one 2.5-inch SATA. That’s a lot of upgrade room in a chassis that barely takes up desk space.