2-Port RS232 Serial Adapter Card with 16950 UART
Product ID: PEX2S953LP
This RS232 Serial Adapter Card lets you add two RS232 (DB9) serial ports to your computer through a
PCI Express (PCIe) slot. It enables you to interact with serial devices, such as card readers, printers, PIN
pads, and modems, at speeds of up to 921.4Kbps.
Maximum Compatibility
With broad OS support, including for Windows and Linux, this PCI Express card is easy to integrate into
mixed environments. The card comes pre-configured with a low-profile bracket, and includes an optional
full-profile bracket, so installation is easy regardless of the case form factor.
Experience Optimal Technology
This PCIe to serial adapter supports the following features:
• Compatible with industry standard 16950 UART
• Supports max baud rate of up-to 921.4Kbps
• Provides 5/12V power output on Pin 9 when external power is connected
• 128-byte depth FIFO per transmitter and receiver
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1 800 265 1844
• Supports 9, 8, 7, 6, 5 data bits
• Asix AX99100 chipset
• PCI Express 1.1 compliant
PEX2S953LP is backed by a StarTech.com lifetime warranty and free lifetime technical support.
www.startech.com
1 800 265 1844
Certifications, Reports
and Compatibility
Applications
• Install in home or office workstations
• Connect in retail POS applications
• Connect to automated self-service kiosks or ATM machines
• Interact with RS232 serial devices like card readers or printers
Features
• Add RS232 DB9 capabilities without purchasing a new server or
computer
• PCI Express 1.1 compliant, ensuring a reliable performance
• Maximize case form factor integration with a low-profile or full profile
bracket
• High-speed data transfer rates of up to 921.4Kbps
• Supports 128-byte depth FIFO per transmitter and receiver
www.startech.com
1 800 265 1844
Warranty Lifetime
Hardware Bus Type PCI Express
Card Type Low Profile (SP bracket incl.)
Chipset ID Asix AX99100
Interface Serial
Port Style Integrated on Card
Ports 2
Performance Data Bits 5, 6, 7, 8, 9
FIFO 256 Bytes
Flow Control None, Xon/Xoff, RTS/CTS
Max Baud Rate 921.6 Kbps
Parity None, Odd, Even, Space, Mark
Serial Protocol RS-232
Stop Bits 1, 1.5, 2
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 Input
Software Microsoft WHQL Certified Yes
OS Compatibility Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Linux 2.4.x to 2.6.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
Product Height 0.7 in [18 mm]
Product Length 3.9 in [98 mm]
Product Width 2.6 in [67 mm]
Weight of Product 2 oz [55.6 g]
Packaging
Information
Package Height 1.2 in [30 mm]
Package Length 6.7 in [170 mm]
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1 800 265 1844
Package Width 5.6 in [142 mm]
Shipping (Package) Weight 5.2 oz [146.4 g]
What's in the Box Included in Package 1 - PCIe Serial Card
1 - Full-Profile Bracket
1 - User Manual
Product appearance and specifications are subject to change without notice.
www.startech.com
1 800 265 1844
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