VANTEC 2-Port Serial PCIe Host Card Model UGT-PCE20SR Type: PCI Express to Serial Port Card External Ports: 2 Serial Ports (DB9 Male) Operating Systems Supported: Windows XP/Vista/7/8 (32/64 bit) Dimensions: 74 x 95 x 18mm Package Contents: 1 x 2-Port Serial (RS-232) PCIe Host Card 1 x Driver CD 1 x User Manual 2 x Low Profile Brackets