Great computer. Arrived on time. Everything works like new. The included SSD was a 2.5" drive. There is also an M.2 slot so I transferred the OS to an M.2 drive, put a higher capacity drive in the 2.5" caddy, and added a USB WiFi dongle. I had to provide my own screw for the M.2 drive. Upgrades went well so now I've got a fast, small computer that will do anything I need.