PCI-e Serial Card 4 Port Rs232 W/ Breakout Cable

 Without VATWith VAT
Base Price:€85,21€103,11
Part Number: PEX4S553B
Language: UK
Minimum Order Quantity: 1

Product Details


The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot, with an included 1-to-4 cable enabling you to add 4 serial ports to a single low profile slot.

The 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 multi-port serial adapter includes both full profile 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®, Linux, and MAC OS.

This product is a replacement for our PEX4S552B 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)
  • Includes both standard and low profile/half-height brackets, which 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 4 additional serial ports to any system
  • Native single chip design
  • Includes a full profile and low profile/half-height bracket
  • On chip 256-byte depth FIFO in transmit/receive path of each port
  • Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps
  • Supports hardware and software flow control
  • Supports re-map function for legacy ports (Supported OS's only)
  • Supports data transfer rates up to 250Kbps on each port
  • Compliant with PCI Express base specifications revision 1.0a
  • Automated out-of-band flow control using CTS/RTS and DSR/DTR


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 TypeLow Profile (SP bracket incl.)
Chipset IDASIX/MosChip - MCS9904CV-AA
Port StyleDongle (Included)
Package Contents
Included in Package4 Port PCI-Express Serial Card
Breakout cable
Driver CD
Full profile bracket
Instruction Manual
Packaging Information
Shipping (Package) Weight0.3 kg [0.7 lb]
Data Bits5, 6, 7, 8
FIFO256 Bytes
Max Baud Rate230.4 Kbps
ParityEven, Odd, None, Space and Mark
Serial ProtocolRS-232
Physical Characteristics
Product Height68.5 mm [2.7 in]
Product Length80.5 mm [3.2 in]
Product Weight50 g [1.8 oz]
Product Width12 mm [0.5 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)