Wireless usb dongle wireless display adapter for benq mx661 and gp10 suitable for projector interface usb 20 compatible with benq mx661 benq gp10 wi fi specifications ieee 80211b ieee 80211g ieee 80211n wireless lan encryptions wep 64 bit wep 128 bit wpa wpa2 tkip aes aerial internal function led status data transmission rate 300 mbps dimensions wxhxd 51 x 24 x 10 mm weight 10 g frequency range 2 4 ghz