PCI Express to Serial Adapter | 921.6Kbps | Windows® and Linux® CompatibleThis multiport PCI Express RS232 serial adapter card lets you add two RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot, as if they were native serial ports. The dual port PCIe serial card enables you to interact with serial devices, such as card readers, printers, PIN pads, and modems, at speeds of up to 921.6Kbps.Maximum CompatibilityWith broad OS support, including for Windows and Linux, this 2 port PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with a full-profile bracket, and includes optional low-profile brackets, so installation is easy regardless of the case form factor. This card is a direct replacement for PEX2S952 .Experience Optimal TechnologyThis PCIe to serial adapter supports the following features:• Industry standard 16950 UART compatible• Supports max baud rate of up-to 921.6Kbps• Provides 5/12V power output on Pin 9 when external power is connected• 256-byte depth FIFO cache per transmitter and receiver• Supports 9, 8, 7, 6, 5 data bits (one per port)• Asix AX99100 chipset• Base PCI Express 1.1 compliant• Low and full-profile brackets includedThe Choice of IT Pros Since 1985StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide support for our customers both pre and post-sales.PEX2S953 is backed by a StarTech.com lifetime warranty and free lifetime technical support.The StarTech.com Advantage

Technical details
Sustainability compliance	Y
Sustainability certificates	CE, RoHS
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64
Linux operating systems supported	Y
Server operating systems supported	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
Ports & interfaces
Host interface	PCIe
Output interface	Serial
Expansion card standard	PCIe 1.1
Serial ports quantity	2
Serial interface type	RS-232
Weight & dimensions
Width	63 mm
Depth	75 mm
Height	15 mm
Weight	56 g
Operational conditions
Operating temperature (T-T)	-10 - 80 °C
Storage temperature (T-T)	-20 - 100 °C
Operating relative humidity (H-H)	5 - 85%
Packaging data
Quantity	1
Quick installation guide	Y
Package width	170 mm
Package depth	142 mm
Package height	30 mm
Package weight	136 g
Design
Internal	Y
Product colour	Green
Mean time between failures (MTBF)	222366 h
Features
Chipset	Asix AX99100
Baud rate	921.6 Kbit/s
FIFO (First In, First Out)	256 B
Data bits	5, 6, 7, 8, 9
Stop bits	1, 1.5, 2
Parity bit	Even, Mark, N, Odd, Space
Flow Control type	N, RTS/CTS, XON/XOFF
Logistics data
Harmonized System (HS) code	84733020
Products per master (outer) case	75 pc(s)
Master (outer) case width	685 mm
Master (outer) case length	345 mm
Master (outer) case height	306 mm