PCI-e Parallel Serial Combo Card With 16550 2 Port W/ Breakout Cable

 Without VATWith VAT
Base Price:€35,82€43,34
Part Number: PEX2S553B
Language: UK
Minimum Order Quantity: 1

Product Details


The PEX2S553B 2-Port PCI Express Serial Card w/ Breakout Cable lets you add two RS232 serial ports using a single PCIe expansion slot. With the included break-out cable, you can easily add two ports to a single low profile slot.

The PCIe serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe enabled computers.

The multiport PCIe Serial Adapter includes both full and low-profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows® 7/Server 2008 R2, 2003/Vista/XP (32 and 64 bit), Linux Kernel 2.6.11 and up, as well as MAC OS 10.5 and above.

This product is a replacement for our PEX2S552B card.

Backed by a lifetime warranty and free lifetime technical support.

Benefits and Features:

  • Lower CPU load of native single-chip, single lane PCI Express design ensures optimal system performance (up to 48% less CPU load)
  • Included standard and low profile/half-height brackets makes this the perfect card for any application including small form factor embedded applications
  • Breakout cable design means that only one expansion slot is needed to add 2 serial ports to any system
  • Full profile and low profile/half-height brackets included
  • Native single-chip design
  • Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps
  • On-chip 256-byte depth FIFO in transmit/receive path of each port
  • Supports hardware and software flow control
  • Automated out-of-band flow control using CTS/RTS and DSR/DTR
  • Supports data transfer rates up to 250Kbps on each port
  • Compliant with PCI Express base specifications revision 1.0a


Connector Type(s)PCI Express x1 Male
External PortsDB-9 (9 pin; D-Sub) Male
Humidity5~85% RH
Operating Temperature0°C to 70°C (32°F to 158°F)
Storage Temperature-40°C to 85°C (-40°F to 185°F)
Bus TypePCI Express
Card TypeStandard Profile (LP bracket incl.)
Chipset IDASIX/MosChip - MCS9922CV-AA
Port StyleDongle (Included)
Package Contents
Included in Package2 Port PCI-Express RS-232 Serial Card
Breakout cable
Driver CD
Instruction Manual
Low profile bracket
Packaging Information
Shipping (Package) Weight0.3 kg [0.6 lb]
Data Bits5, 6, 7, 8
FIFO256 Bytes
Flow ControlHardware and Software
Max Baud Rate230.4 Kbps
ParityEven, Odd, None, Space, and Mark
Serial ProtocolRS-232
Stop Bits1, 2
Physical Characteristics
Product Height68.5 mm [2.7 in]
Product Length81 mm [3.2 in]
Product Weight46 g [1.6 oz]
Product Width14 mm [0.6 in]
Microsoft WHQL CertifiedYes
OS CompatibilityWindows® 8 / 8.1 (32/64bit), 7 (32/64), Vista (32/64), XP (32/64), XP Embedded, POS Ready 2009, Embedded System 2009, CE 5.0/6.0, 2000, 98SE, 95, DOS
Windows Server® 2012, 2008 R2, 2003
Mac OS® 10.4 and up (Tested up to 10.9)
Linux 2.6.x