Wi-Fi 5 (2.4GHz & 5GHz) and Bluetooth 4.2 via USB 2.0. Rather old and outdated at this point but still ok if you have a cheap refurb SFF PC that doesn't come with bluetooth/wifi.
Not the cheapest but a decent adapter for reasonable price High Speed WiFi– Up to 600Mbps speeds with 200Mbps on 2.4GHz and 433 Mbps on 5GHz, upgrades your devices to higher AC WiFi speeds. …