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The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.

Based on a native single-chip design, this 4-port serial adapter card allows you to harness the full capability offered by PCI Express (PCIe), while reducing the load applied to the CPU by as much as 48% over conventional bridge-chip serial cards.

The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.

Backed by a StarTech.com Lifetime warranty and free lifetime technical support.

(PEX4S553)

Warranty Information
Warranty Lifetime
Hardware
Bus Type PCI Express
Card Type Standard Profile (LP bracket incl.)
Chipset ID ASIX - MCS9904CV-AA
Interface Serial
Port Style Integrated on Card
Ports 4
Performance
Data Bits 5, 6, 7, 8
FIFO 256 bytes
Max Baud Rate 128 Kbps
MTBF 26,280 Hours
Parity 5, 6, 7, 8
Serial Protocol RS-232
Connector(s)
Connector Type(s) 1 - PCI Express x1 Male
External Ports 4 - DB-9 (9 pin, D-Sub) Male
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, 2019
Mac OS® 10.4 to 10.10
Linux 3.5.x to 4.11.x LTS Versions Only
Environmental
Humidity 5~85% RH
Operating Temperature 0°C to 50°C (32°F to 122°F)
Storage Temperature -20°C to 60°C (4°F to 140°F)
Physical Characteristics
Color Green
Product Height 0.7 in [1.9 cm]
Product Length 4.7 in [12 cm]
Product Width 5.1 in [13 cm]
Weight of Product 2.6 oz [74 g]
Packaging Information
Package Height 1.2 in [30 mm]
Package Length 6.7 in [17 cm]
Package Width 5.6 in [14.1 cm]
Shipping (Package) Weight 8.1 oz [230 g]
What's in the Box
Included in Package 1 - 4 Port PCI-Express RS-232 Serial Card
1 - Bracket with 2 DB9 male ports
4 - Low Profile Brackets
1 - Driver CD
1 - Instruction Manual
SKU PEX4S553
Barcode # 65030843553
Brand STARTECH
Shipping Weight 0.2400kg
Shipping Width 0.100m
Shipping Height 0.050m
Shipping Length 0.170m
Shipping Cubic 0.000850000m3
Manufacturer Warranty: Limited Product Lifetime Warranty

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StarTech 4 Port PCIe Serial Adapter Card w/ 16550 - PEX4S553

Model # PEX4S553

  • SKU: PEX4S553

$178.00
$181.00
SAVE $3.00 (2%)
Only 1 left!



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