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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(R), Linux, and MAC OS.
This product is a replacement for our PEX4S552B card.
Backed by a StarTech.com lifetime warranty and free lifetime technical support.
Connector(s) Connector Type(s) PCI Express x1 Male External Ports DB-9 (9 pin, D-Sub) Male Environmental Humidity 5~85% RH Operating Temperature 0C to 70C (32F to 158F) Storage Temperature -40C to 85C (-40F to 185F) Hardware Bus Type PCI Express Card Type Low Profile (SP bracket incl.) Chipset ID ASIX/MosChip - MCS9904CV-AA Interface Serial Port Style Dongle (Included) Ports 4 Packaging Information Shipping (Package) Weight 0.3 kg [0.7 lb] Performance Data Bits 5, 6, 7, 8 FIFO 256 Bytes Max Baud Rate 230.4 Kbps Parity Even, Odd, None, Space and Mark Serial Protocol RS-232 Physical Characteristics Product Height 68.5 mm [2.7 in] Product Length 80.5 mm [3.2 in] Product Weight 50 g [1.8 oz] Product Width 12 mm [0.5 in] Software Microsoft WHQL Certified Yes OS Compatibility Windows DOS, 95, 98SE, 2000, CE 5.0/6.0, Embedded System 2009, POS Ready 2009, XP Embedded, XP, Vista, 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016 Mac OS 10.4 to 10.10 Linux 3.5.x to 4.4.x LTS Versions Only What's in the Box Included in Package 4 Port PCI-Express Serial Card Breakout cable Driver CD Full profile bracket Instruction Manual
5 Star (3)
4 Star (6)
3 Star (1)
2 Star (1)
1 Star (1)
Average Star Rating: 3.8 out of 5
(12 customer reviews)
12 reviews for StarTech 4 Port RS232 PCI Express Serial Card w/ Breakout Cable
Rated 4 out of 5
Blade Ben from Cordoba, Spain
Dont settle for alternatives, this is what you want at a reasonable price.
Rated 4 out of 5
Bundle of Love from Wichita, United States
It is well worth the money unlike some cheaper alternatives that do not last that long or break often.
Rated 4 out of 5
Sugar Hugs from Dubai, United Arab Emirates
Very impressive with great quality at that discounted price.
Rated 4 out of 5
livingfree8 from Al Minya, Egypt
Well worth every dollar!
Rated 3 out of 5
Technophyle from Cape Town, South Africa
My recommendation is to look for something else, not the best quality
United States of America
Blade Ben from Cordoba, Spain
Dont settle for alternatives, this is what you want at a reasonable price.
Bundle of Love from Wichita, United States
It is well worth the money unlike some cheaper alternatives that do not last that long or break often.
Sugar Hugs from Dubai, United Arab Emirates
Very impressive with great quality at that discounted price.
livingfree8 from Al Minya, Egypt
Well worth every dollar!
Technophyle from Cape Town, South Africa
My recommendation is to look for something else, not the best quality