Zoom ADSL USB modem. Cabling technology: RFC 1483. DSL connection type: ADSL, Upstream data rate: 0.896 Mbit/s, Downstream data rate: 8 Mbit/s. Supported WAN type: RFC 2364/RFC 2516. Certification: CE, UL, C-UL, FCC Part 15B, FCC Part 68, CS-03. Compatible operating systems: Windows 98, 98SE, Me, 2000, XP Mac 9.1, 9.2, OS X 10.1+