"ExpressCards are the new generation of I/O expansion for notebooks. Add reliable high-speed serial ports for connecting card readers barcode scanners and other serial devices to laptop tablet and handheld PCs. Available in 1 2 and 4 ports for RS-232 or RS-422/485. One of the most plete and robust Serial ExpressCards in the marketplace Quatech ExpressCards can expand a mobile system"s capabilities while taking up minimal system resources. Because they share electronic fundamentals with native bus architectures they function exactly like standard COM ports and can be addressed as such by most application software. The ExpressCard delivers thinner faster and lighter modular expansion to desktops and notebooks. In addition their small size and the fact that the card itself can be left inside the puter at all times make them practical choices for the "most mobile" portable systems. Quatech"s QSPXP-200/300 fully supports serial UART registers and addressing exactly like a puter"s native serial port. Thus unlike the many USB based design ExpressCards Quatech"s QSPXP-200/300 PCIe based design can achieve higher data rates (Up to 921 Kbaud) and integrate with existing software. "Primary InformationPC Compatibility : PC Form Factor : Plug-in card Networking / Ports Qty : 2 Data Link Protocol : RS-232 Connectivity Technology : Wired Data Transfer Rate : 115.2 Kbps Networking Type : Serial Adapter Networking Interface : PCI Express Service&SupportService & Support Type : 1 Year Limited Warranty ExpansionInterfaces & Connections : 2 x 9-pin D-Sub (DB-9) Male RS-232 Serial Special FeatureRoHS : Yes UNSPSC CodeUNSPSC Code : 43201404