Alfa AWUS036ACHM

It features an RP-SMA antenna port and a 5 dBi dual-band antenna. The antenna is detachable and can be upgraded. It also has a power amplifier that increases it's reception range compared to ALFA's single antenna 802.11n products.

This is capable of receiving and transmitting on both the 2.4 GHz and 5 Ghz bands. With 802.11ac standard routers, AWUS036ACHM can achieve throughput speeds up to 433 Mbps. This adapter is backward compatible with 802.11n WiFi routers, but will have limited speed with those networks. An 802.11ac router is required for the maximum throughput.