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PCIe x1 MCS9901 1-port RS232 Serial & 1-port Parallel 1S1P Combo Card

  • Product Code: PX1-1S1P-9901
  • Availability: In Stock
  • Ships: Typically within 3 Business Days
  • Guarantee: 30-day Return and Money Back


The PX1-1S1P-9901 2S1P PCI Express Serial Parallel Combo Card combines the functionality of Parallel and Serial cards, adding 1 RS232 serial ports and 1 parallel port through a single PCI Express (PCIe) slot. Suitable for almost any computer, the card offers a low profile/half-height design and includes an optional full-height bracket. Compatible with a broad range of operating systems including DOS, Windows® 7/Server 2008 R2/Vista/XP/Server 2003/2000/98SE (32/64 bit), Linux and Mac OS X.

The card also features a native single-chip design that provides improved speed and reliability while reducing the CPU load by as much as 48% over conventional (bridge chip) cards.


  • Fully compliant with PCI-Express Base Specification Revision1.1
  • Single-lan PCI-Express with throughput up to 2.5Gbps
  • Compatible with industrial standard 16C550 \ 16C552 \ 16C554 and 16C750 UART
  • On chip 256-byte depth FIFO in transmit, receive path of each port
  • Support for bi-directional data transmission, the transmission speed up to 2M bytes support
  • Built-in SPP、PS/2、EPP、ECP compatibles with IEEE1284 Printing Protocol
  • Supports 5-6-7-8-bit Serial format, support 1 or 2 Stop bit operation


  • Chipset: ASIX - MCS9901CV-CC
  • Bus Interface: PCI Exrpess X1, Rev 1.1 (2.5 GT/s)
  • Connectors: 1 x DB9 Serial + 1 x DB25 Parallel
  • FIFO: 16-bytes
  • Data rate : Serial up to 230.4 Kbps, Parallel up to 1.5 Mbps
  • Function
    • Support RS-232 Hardware Flow Control
    • Built-in 16C950 UART compatible UART
    • Automatically selects IRQ and I/O address
  • OS Compatibility
    • Windows® DOS, 95, 98SE, 2000, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, XP Embedded, 2000, XP, Vista, 7, 8, 8.1, 10
    • Windows Server® 2003, 2008 R2, 2012, 2016, 2019
    • Mac OS X® 10.4 to 10.9
    • Linux 3.5.x to 4.11.x LTS Versions only

Package Contents

  • PCIe MCS9901 1S1P Card
  • Full profile bracket
  • Driver CD
  • User Manual

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