PCI Express to Serial Adapter | 921.6Kbps | Windows and Linux Compatible

This PCI Express RS232 serial adapter card lets you add four RS232 (DB9) serial ports to your computer through a PCI Express (PCIe) slot. The 4 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 Compatibility 

With broad OS support, including for Windows and Linux, this PCI E serial card is easy to integrate into mixed environments. The card comes pre-configured with low-profile brackets and includes optional full-profile brackets, so installation is easy regardless of the case form factor. This card is a direct replacement for PEX4S952LP.  

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 921.6Kbps 

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 

PCI Express 1.1 compliant 

The Choice of IT Pros Since 1985    

StarTech.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.  

PEX4S03LP is backed by a StarTech.com lifetime warranty and free lifetime technical support. 

The StarTech.com Advantage

- Install in home or office workstations
- Connect to automated self-service kiosks or ATM machines
- Connect in retail POS applications
- Connect serial printers and other legacy devices to modern computers

Technical details
Sustainability certificates	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 8.1, 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	Yes
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
Weight & dimensions
Width	75 mm
Depth	63 mm
Height	18 mm
Weight	264 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
Cables included	Serial
Mounting brackets included	Yes
Quick installation guide	Yes
Package width	213 mm
Package depth	149 mm
Package height	51 mm
Package weight	370 g
Design
Internal	Yes
Product colour	Green
Mean time between failures (MTBF)	214358 h
Certification	CE, FCC
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, No, Odd, Space
Flow Control type	No, RTS/CTS, XON/XOFF
Logistics data
Harmonized System (HS) code	84733020
Products per master (outer) case	16 pc(s)
Master (outer) case width	480 mm
Master (outer) case length	350 mm
Master (outer) case height	235 mm