COVID-19 INFORMATION: Our showroom is open for Click & Collect orders. Click here for details. 2 Port Native PCI Express RS232 Serial Adaptor Card with 16550 UART - (CNT0131)

£32.11 inc VAT

In Stock for Priority Delivery Order for Pickup in 1-2 Days


The PEX2S553 PCI Express serial card lets you turn a PCI Express slot into 2 RS232 (DB9) serial ports. Based on a native single chip design (no bridge chip), this 2-port serial Adaptor card allows you to harness the full capability offered by PCI Express (PCIe), and reducing the load applied to the CPU by as much as 48% over conventional serial cards. The RS232 Serial Adaptor Card (PEX2S553) is compatible with a broad range of operating systems including Windows 2000/XP/2003/Vista/Windows 7/Server 2008 R2 (32 and 64 bit), Linux Kernel 2.6.11 and up, and MAC OS 10.4 and above.

Main Features:

  • Two high speed RS232 serial ports with support for data transfer rates up to 4608 Kbps
  • Compliant with PCI Express base specifications revision 10a
  • Includes half-height/low profile mounting bracket
  • Selectable power output on pin 9 for the serial port
  • 128-byte deep FIFO per transmitter and receiver
  • Native single-chip, single lane PCI Express
  • Automated out-of-band flow control using CTS/RTS and DSR/DTR
  • Automated in-band software flow control using programmable Xon/Xoff in both directions


Number of Ports 2 port(s)
Port Connector DB-9
Form Factor PCI Card
Width 6.35 cm
Depth 10.5 cm
Height 2 cm
Weight 0.63 kg
Warranty Lifetime warranty
Item Details
Part Number PEX2S553
UPC 065030841740
Condition New