This modem has support for ADSL1 only. (Max download rate of 8 Mb/s)

"Hardware Platform PC interfaces: PCI version 2.2 compliant WAN interfaces: ADSL line RJ-11 POTS interface: RJ-11 through optional splitter Physical speci?cations: half-size PCI Operating environment: Temperature: 0° to 70°C Humidity: 10% to 90% Modem Software RFC 1483 Bridged Ethernet over ATM RFC 2364 Point-to-Point protocol over ATM Support for PPPoE ADSL modem specifications Up to 8 Mb/s downstream Up to 1 Mb/s upstream Can operate with a central splitter or splitterless (with in-line ?lters) Compliant with multiple ADSL standards: ANSI T1.413 Issue 2 ITU G.992.1 (G.dmt) ITU G.992.2 (G.lite)"