BYTECC 1 port PCIe Serial Card Model BT-PE1S Type: PCI Express to Serial Port Card External Ports: 1 x Serial Port Operating Systems Supported: Windows 2000/ xp /server 2003 32/64 bit Dimensions: 1.5 x 8 x 5.5 Weight: 0.5 lbs Package Contents: PCIe Serial Card 1 Ports Driver Disk