Linksys WAG54GX2-EU Wireless-G ADSL Gateway with SRX200. Security algorithms supported: Keyword and URL blocking, Trusted IP access, Time scheduling, Email and logging notification. Frequency band: 2.4 GHz, Data transfer rate: 0.1 Gbit/s. Minimum system requirements: ADSL Broadband Internet service over BT telephone line . Dimensions (WxDxH): 140 x 140 x 27 mm. Compatible operating systems: Windows 98, Me, NT, 2000, XP, Mac OS, NetWare, UNIX, or Linux