PCI MCS9865 2S DB9 RS232 Multi-I/O Card

PCI Multi-I/O card use the chip of ASIX MCS9865, It supports the maximum rate of 2-Mbps and it can be used for PCI bus DB9 RS232 Serial port expansion.

  • PO: ST324
  • P/N: SP-SL9865A-2S
  • Chipset: MCS9865 , ASIX
  • Host Bus: PCI
  • Interface: DB9,RS232
  • Date rate: up to 1Mbytes/sec


PCI Multi-I/O card use the chip of Moschip MCS9865, It supports the maximum rate of 2-Mbps and it can be used for PCI bus DB9 RS232 Serial port expansion, and High speed serial port of PCI with automatic hardware rate control, Serial port network, RS485 communication, Parallel / Printer port expansion.


    - Compliant with PCI Local Bus Specification,Revision 2.3

    - Supports 2 x UART serial ports

    - Easy Plug and Play

    - Automatically selects IRQ & I/O address

    - Built-in 16C450/550 compatible UART

    - On chip 256 byte FIFOs in transmit and receive path of each serial port

    - Serial data transfer rate up to 115200bps

Serial Port:

    - Build-in 16C550 compatible UART with 16 byte transmit-receive FIFO

    - Fast data rates up to 1 Mbytes/sec

    - Able to support 16C650 (32 byte FIFO), 16C750 (64 byte FIFO), 16C850 (128 byte FIFO) compatible UART (Not all version).

ChipsetASIX MCS9865
Bus InterfacePCI Rev 2.1

2 x DB9 Serial ports

Data rate

up to 1 Mbytes/sec

FunctionSupport IRQ share for PCI
Built-in 16C450/550 compatible UART
Automatically selects IRQ and I/O address
SystemWindows 98se/ ME / NT 4. 0/ Server 2000 / XP / Vista / Server 2008 / Win 7 / Win 8 , Linux

1 x 9865-2S PCI Multi-I/O card

1 x User's manual

1 x CD-Driver

1 x Low profile bracket

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