Sitecom PC-003 - ISDN PC-Card. Host interface: PC Card 16-bit. Data transfer rate: 0.128 Mbit/s. Cables included: 1 x modem cable. Bundled software: Drivers & Utilities, RVS-COM Lite, Connectivity technology: Wired, Compatible operating systems: Microsoft Windows 95/98, Microsoft Windows 2000 / NT4.0, Microsoft Windows Millennium Edition