The Cradlepoint mobile broadband router connects multiple computers to the Internet, utilizing only a single broadband EV-DO or HSDPA device. It functions as an access point, communicating with local computers over 802.11b/g/n* wireless and to the Internet via your cellular 3G handset or ExpressCard. It allows your desktop PCs to use your cellular device, or it can create a Wi-Fi hot spot where fixed broadband connections are unavailable. Cellular data coverage varies by area; consult your carrier for availability. Includes Ethernet adapter and AC adapter. Requires active EV-DO or HSDPA ExpressCard or USB-connecting handset. *802.11n draft speeds. Specifications Measurements: 5 5/8"L x 8"W x 1 1/4"H Wi-Fi standards : 802.11b/g/n* Cellular standards: EVDO & HSDPA Ethernet connections: 4 10/100 LAN, 1 WAN USB ports: 2 ExpressCard slots: 1 802.11 antennas: 3