This Wireless USB Adapter connects your laptop or desktop computer to your wireless network. You can connect to either a 5.8GHz or 2.4GHz network. Enhance any USB equipped laptop or desktop with the power of Dual-Band Wireless Network. Most laptops and desktop computers only have the 2.4GHz wireless built in, dual band with the additional 5Ghz band will allow you to use a less congested 5GHz band. Please ensure that the router that you want to connect operates in the 5GHz band as not all do. Dual band frequency and fully complies with IEEE 802.11a/b/g /n standards based on 2T2R MIMO technology. A wifi MAC/BBP, RF/PA/LNA single chip is used to deliver high-performance of the latest Wi-Fi technology. Features- Support IEEE802.11ac Compatible with IEEE 802.11b/g/n High speed ;wireless transmission, dual Band (2.4GHZ/150Mbps, 5.8GHZ/433Mbps) Support WPA/WPA2/WEP/802.1X/WMM Compatible with Windows XP/Vista/7/8/10, Mac OS X (up to 10.12.1) Strong anti-interference ability Support the latest wireless standards External antenna design, exquisite compact ; Specifications Interface: USB 2.0 Antenna: Internal antenna Transmission distance: Indoors MAX 100m Working frequency 2.412~2484GHz/5.15~5.825GHz (according to different regions) Transmitting power 802.11b (CCK) 11Mbps: 17+/-2d - Bm 802.11g (OFDM) 54Mbps: 14+/-2d - Bm 802.11n (OFDM) 54Mbps: 14+/-2d - Bm 802.11ac AC80 MCS9: 12+/-2d - Bm EVM 11b 11Mbps:<-15db 11g 54Mbps: <-27db 11g 65/135Mbps: <-27db 11ac MCS9: <-30db Receiving sensitivity 802.11b: -76+/-1d - Bm 802.11g: -65+/-1d - Bm 802.11n (HT20), -70+/-1d - Bm 802.11n (HT40), -65+/-1d - Bm AC80-MCS9: -55+/-1d - Bm Wireless transmission rate 11b: Max 11Mbps 11g: Max 54Mbps 11n: Max 150Mbps AC: Max 433Mbps Voltage/current: 5VDC 5%VDC / <220m - A (MAX) Power dissipation Receiving and transmitting Status: 220m - A (max) Package 1 x Wireless Wifi USB Adaptor 1 x CD (Drivers + User manual)