SparkLAN WL-685R. Connectivity technology: Wireless, Host interface: USB, Interface: WLAN. Data transfer rate (max): 54 Mbit/s. Chipset: Ralink RT257WF, Networking standards: IEEE 802.11b, IEEE 802.11g, Modulation: CCK, DBPSK, DQPSK, OFDM. Wireless LAN type: 802.11b, 802.11g. Width: 22 mm, Depth: 96 mm, Height: 14 mm