PCI EXPRESS PCIe RS232 SERIAL 8 PORT CARD with DB9X8 cable     (Support Win7, Win8 )

  PCI-e one chip solution(OXFORD OXPCIe958 chip)

It's real COM Port in your computer, not USB to COM port
  high compatible with serial type device.

     cable for PCIe 8S card

The adapter card is based on a oxford single chip design, that allows you to harness the full capability of PCI Express (PCIe) - providing optimum reliability and speed, and reducing the load applied to the CPU by as much as 48% over conventional serial cards.

FEATURES

●      Expands 8 independent RS-232 serial ports through PCIe slot

●      High speed 16C950 compatible UART controller on-board

●      On-chip hardware auto flow control to guarantee no data loss

●      Supports x1,x2,x4,x8,x16（lane）PCI-Express Bus connector keys

●   Each port offer data transfer rate up to 460Kbps

●      Each serial port has built-in 128K byte DMA software FIFO

●      Support Linux,Microsoft Windows 2000/XP/2003/Vista/Win7 and Win8