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StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows/Linux - TAA

1 offer · 1 shop · last checked 2026-10-29 20:18 (Europe/Berlin)

Host interface
PCIe
Output interface
Serial
Expansion card standard
PCIe 1.1
Product colour
Green
Product image: StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows/Linux - TAA1 / 7

Delivered total

EUR 126,18

Sold by 0815 DE · PEX4S953LP · New

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1 live offer

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Observed item prices

0815 DE, one listing

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EUR126,1829 Oct 2026
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Observed prices over time
DayLowestHighestLastChecks
29 Oct 2026EUR126,18EUR126,18EUR126,183
28 Oct 2026EUR126,18EUR126,18EUR126,183
27 Oct 2026EUR126,18EUR126,18EUR126,181
12 Oct 2026EUR126,18EUR126,18EUR126,181
11 Oct 2026EUR126,18EUR126,18EUR126,183
10 Oct 2026EUR126,18EUR126,18EUR126,182
9 Oct 2026EUR126,18EUR126,18EUR126,183

About this product

StarTech.com 4-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Card - Windows/Linux - TAA, PCIe, Serial, PCIe 1.1, Green, 214358 h, CE, FCC

Read the full source description

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.

Text from Specs Icecat.

Specifications

38 specifications

Product data: Specs Icecat

GTIN
00065030887052
MPN
PEX4S953LP
Ports & interfaces3
Host interface
PCIe
Output interface
Serial
Expansion card standard
PCIe 1.1
Design4
Internal
Yes
Product colour
Green
Mean time between failures (MTBF)
214358 h
Certification
CE, FCC
Features7
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
Operational conditions3
Operating temperature (T-T)
-10 - 80 °C
Storage temperature (T-T)
-20 - 100 °C
Operating relative humidity (H-H)
5 - 85%
System requirements3
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
Technical details1
Compliance certificates
RoHS
Weight & dimensions4
Width
75 mm
Depth
63 mm
Height
18 mm
Weight
264 g
Packaging data8
Quantity
1
Cables included
Serial
Mounting brackets included
Yes
Quick installation guide
Yes
Package width
151 mm
Package depth
216 mm
Package height
54 mm
Package weight
370 g
Logistics data5
Harmonized System (HS) code
84733020
Products per master (outer) case
16 pc(s)
Master (outer) case width
344 mm
Master (outer) case length
476 mm
Master (outer) case height
248 mm