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Go to StarTech.com2 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
Add 2 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot
Product ID: PEX2S553
- Two high speed RS232 serial ports with support for data transfer rates up to 460.8 Kbps
- Compliant with PCI Express base specifications revision 1.0a
- Includes half-height/low profile mounting bracket
- Selectable power output on pin 9 for the serial port
- 128-byte deep FIFO per transmitter and receiver
- Native single-Chip, single lane PCI Express
- Automated out-of-band flow control using CTS/RTS and DSR/DTR
- Automated in-band software flow control using programmable Xon/Xoff in both directions
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Overview
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® 2000/XP/2003/Vista™/Windows 7/Server 2008 R2 (32 and 64 bit), 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 Lifetime warranty and free lifetime technical support.
The StarTech.com Advantage
- Native single-chip, single lane PCI Express chipset delivers true PCIe performance
- Standard and low profile/half-height bracket included to ensure fitment in any system
- Easy to install and use with full step-by-step instructions saving time and hassle
Applications
Self-service automated machines and kiosks to control serial devices such as scales, touchscreens, magnetic card readers, bar code scanners, receipt printers, label printers
POS retail applications in grocery stores, and any other retail store to control keyboards, cash drawers, receipt printers, card readers / card swipes, scales, and elevated displays on poles
Bank teller workstations in either full profile or low profile versions to control their serial devices such as cash drawers, card readers / card swipes, printers, keypads / pinpads, pen pads
Standard ATM automated teller machines to control keypads, receipt printer, card readers / card swipes, touchscreen LCD's, camera control, etc.
Used to control multiple surveillance / security cameras in a parking structure, office building, etc.
Technical Specifications
Product Numbers | ||
---|---|---|
Ingram Finland | V931202 | |
UPC Code | 065030841740 |
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, Molex 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 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 | 20 mm [0.8 in] | |
Product Length | 105 mm [4.1 in] | |
Product Weight | 63.5 g [2.2 oz] | |
Product Width | 120 mm [4.7 in] | |
Packaging Information | ||
Shipping (Package) Weight | 0.2 kg [0.4 lb] | |
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 |
Compatibility








Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS X® 10.4 to 10.10
Linux kernel 2.6.x to 4.11.x LTS Versions only
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Accessories
1,8m (6ft) Straight Through Serial Cable - DB9 M/F
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1,8m (6 ft) Straight Through Serial Cable - DB9 F/F
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Product Support
Drivers & Downloads
Driver(s):
-
[ASIX MosChip 99xx] PCIe Serial Card.zip
Windows 8 - 10: 3.18.1.0
Windows XP - 7: 3.12.1.0
Linux Version 3.1.0
Manual(s):
-
PEXxS553xx.pdf
English
Compliance Letter(s):
Data Sheet(s)
- PEX2S553_Datasheet-EN-EU.pdf
English
Frequently Asked Questions
Before You Buy
Serial cards derive power from the PCI or PCI Express slot on the motherboard. When you power serial devices from the serial card ports, the power provided by the slot may not be enough to power all of the devices and you should connect additional sources of power from the power supply. When you troubleshoot issues, you should connect an additional source of power.
Some signs that you are experiencing power-related issues include certain devices not working correctly, not all of the devices working at the same time, and certain devices not working at all.
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