• Has high power and high sensitivity• Further, it provides an external antenna which can easily advance your distance and performance more flexible.• To protect your wireless connectivity, the high-speed wireless USB adapter can encrypt all wireless transmissions through 64/128/256-bit WEP data encryption and also supports WPA.• With the High-Speed Wireless USB Adapter, you will experience the best wireless connectivity available. Specifications Host Interface : Mini USBStandards : IEEE 802.11b IEEE 802.11g IEEE 802.11nAntenna Type : External detachable antenna(5dBi)Wireless Frequency Range : 2.4GHz-2.4835GHz Wireless Signal Rates (With automatic fallback) : 802.11b(11Mbps,9Mbps, 6Mbps, 5, 5Mbps, 2Mbps, 1Mbps)801.11g(54Mbps, 48Mbps, 36Mbps, 24Mbps, 18Mbps, 12Mbps, 11Mbps, 9Mbps, 6Mbps)802.11n(150Mbps,135Mbps,108Mbps,65Mbps) Wireless Transmit Power : 1000MW(MAX)Modulation : 11b: Direct Sequence Spread Spectrum(DSSS)11Mbps/5.5Mbps:CCK2Mbps:DQPSK1Mbps:DBPSk11g: Orthogonal Frequency Division Multiplexing (OFDM)54Mbps/48Mbps:QAM-6436Mbps/24Mbps:QAM-1618Mbps/12Mbps:QPSK9Mbps/6Mbps:BPSK11n:150Mbps:QAM-64 Modulation Technique : 802.11b: Direct Sequence Spread Spectrum (PBCC, CCK, DQPSK, DBPSK)802.11g: Orthogonal frequency division multiplexing Security : Hardware-Based Encryption/Decryption Using 64-128-bit Wired-Equivalent Privacy(WEP)keys, WPA and WPA2 are also supported.802.11n : Security: Hardware-Based Encryption/Decryption Using 64-128-bit Wired-Equivalent Privacy(WEP)keys, WPA and WPA2 are also supported.Range : indoors up to 500meters (Theoretical value) Outdoors up to 1000meters (Theoretical value) LED Indicators : Link/ActivityUse environment Temperature : -10°C - 40°C (operating), -20°C 70°C (storage)Humidity:5%-95% non-condensing (operating),5%-95% non-condensing (storage)Support operating system : Windows2000/XP/XP64/Vista/Win7/Linux/MacOS