MAIN OVERVIEW FEATURES: Host Interface: PCI Express x1Maximum Data Transfer Rate: 2.50 Gbit/sPorts: 1 x HD-44 Female - SerialPorts Expandability: 4 x DB-9 RS-232 - Serial, Via CableForm Factor: Plug-in CardPackage Contents: 4-Port DB9 (RS-232) Serial PCI Express Card DB9 Breakout Cable (HD44 to 4x DB9 M/M) Driver CD Owner's Manual Environmentally Friendly: YesEnvironmental Certification: RoHSLimited Warranty: 2 Year