PCI Express PCIe RS232 1 Serial (16C550) with Power &     Low Profile Bracket   (SUPPORT Vista & Win 7)

with DC POWER OUTPUT ON PIN 9 of the Serial Port
5V/12V/RI(No Power) Power selectable on each individual port (DB9 Pin9)

The card is specially designed to allow power output from the ninth pin of the connector to enable power up
of the connected devices without power adapter. The card allow user to set each individual port with 5v,12v or RI (No Power)

User can also choose to draw the needed power from the external system power supply.

 PCI-e one chip solution(Moschip MCS9901CV)

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

FEATURES

* 1 independent RS-232 serial ports with communication speeds up to 430Kbps
* Designed to meet PCI-Express Base Specification Revision 1.1
* Supports x1,x2,x4,x8,x16（lane）PCI-Express Bus connector keys
* High speed 16C550 compatible UART controller on-board
* On-chip hardware auto flow control to guarantee no data loss
* Built-in 16 byte hardware FIFO & 256K byte DMA software FIFO
* Support DOS,Linux,MAC,Microsoft Windows 2000/XP/2003 and Vista