SIIG 1-Port RS232 Serial PCIe with 16950 UART Model JJ-E01111-S1 Type: PCI Express to Serial Port Card External Ports: 1 x Serial Port Data Transfer Rate: Up to 230Kb/s Operating Systems Supported: Windows 7 (32-/64-bit) / Vista (32-/64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/64-bit) / Server 2008 R2 / 2000 Specifications: Compliant with PCI Express Base Specification, Revision 1.1 Chipset: Oxford OXPCIe952 Built-in 128-byte FIFO buffers dramatically increase data transmit/receive speed under Windows multitasking environment Interfaces/Ports: 1, 9-Pin, DB9, Serial, Male, External Certifications/ Standards: FCC, CE, RoHS Dimensions: 4.72 x 2.9 x 0.71 Weight: 0.125 lbs. Package Contents: DP 1-Port RS232 Serial PCIe with 16950 UART Spare low profile bracket Driver CD User's manual