This item is manufactured with for durable and use. It’s easy to use and install with . The precise design with strong signal transmission will ensure its practicability in the work of highly performance. Features - Color: Black. - Material: Plasitc and Metal. - Size: About 1.9x1.5x0.6cm/0.75x0.59x0.24inch. - 2.4GHz band with maximum up to 150Mbps. - USB2.0 High interface connector. - It features strong wall penetration ability and long transmission distance - It is with fast data transmission by simultaneously input and output - Easy setup: Install the driver from the included CD. After the driver is installed, you can use the built-in wireless utility in your operating system to connect to a wireless network. Specification Frequency range: 2.4 ~ 2.4835GHz. Working channel: 13. Transmitting power: 1000mw. Transmission standard: MIMO.OFDM. Receiving sensitivity: 11Mbps: <-82dBm% 8FER 150Mbps: <-70dBm% 8FER. Power supply: USB 2.0 interface. Transmission rate: 11n: up to 150M 11g: 6/9/12/18/ /36/48 / 54Mbps (adaptive) : 1/2 / 5.5 / 11M (adaptive) Data modulation: : , DQPSK, DBPSK 11g: OFDM 11n: OFDM with , BPSK, 16- , 64- : 20dBm (maximum value) Working temperature: 0 degree centigrade to 40 degree centigrade Storage temperature: -40 degree centigrade to 70 degree centigrade Operating humidity: RH non-condensing Storage humidity: 5% to 90% RH non-condensing Compatible operating system: 2000 / XP / Vista / WIN 7.8 / / Package list: 4 x wifi adapters