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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 adapter 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 Adapter Card (PEX2S553) is compatible with a broad range of operating systems including Windows® and Linux Kernel 2.6.11 to 4.11.x, and MAC OS 10.4 and above.

Plus, the serial card includes an optional half-height/low profile bracket that allows the card to be installed in any PCI Express slot, regardless of the size of the computer case.

This product is a replacement for our PEX2S552 card.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

(PEX2S553)

Warranty Information
Warranty 2 Years
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID ASIX - MCS9922CV-AA
Interface Serial
Port Style Integrated on Card
Ports 2
Performance
FIFO 128 Bytes
Max Baud Rate 460.8 Kbps
Serial Protocol RS-232
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 2 - DB-9 (9 pin, D-Sub) Male
Internal Ports 1 - LP4 (4 pin; Large Drive Power) Male
Software
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, 2019
Mac OS X® 10.4 to 10.10
Linux kernel 2.6.x to 4.11.x LTS Versions only
Special Notes / Requirements
Note Selectable power output on pin 9 of the serial port
Environmental
Humidity 5~85% RH
Operating Temperature -10°C to 80°C (14°F to 176°F)
Storage Temperature -20°C to 100°C (-4°F to 212°F)
Physical Characteristics
Color Green
Product Height 0.8 in [2 cm]
Product Length 4.1 in [10.5 cm]
Product Width 4.7 in [12 cm]
Weight of Product 2.2 oz [61 g]
Packaging Information
Package Height 1.3 in [32 mm]
Package Length 6.9 in [17.5 cm]
Package Width 5.7 in [14.5 cm]
Shipping (Package) Weight 5.3 oz [151 g]
What's in the Box
Included in Package 1 - 2 Port PCI-Express Serial Card
2 - Low Profile Brackets
1 - Driver CD
1 - Instruction Manual
SKU PEX2S553
Barcode # 65030841740
Brand Startech
Shipping Weight 0.1500kg
Shipping Width 0.100m
Shipping Height 0.050m
Shipping Length 0.170m
Shipping Cubic 0.000850000m3
Manufacturer Warranty: 2 Years Limited Warranty

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StarTech 2 Port PCIe Serial Adapter Card w/ 16550 - PEX2S553

Model # PEX2S553

  • SKU: PEX2S553

$97.00
Sold Out



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