Input: 1 x USB A-2.0 LED Indicator: Yes Wi-Fi: PIFA Antenna Operating Frequencies: 2.4GHz & 5GHz Wireless Standards: IEEE 802.11b/g/n, IEEE 802.11a/ac Transmission Rates: 2.4GHz: 200Mbps; 5GHz: 433Mbps Transmission Power: <20dBm Compatible System: Windows/ mac OS/ Linux Dimension: L40mm x W19mm x H9mm