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StarTech.com

StarTech.com 2-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

2 offers · 2 shops · last checked 2026-10-29 15:22 (Europe/Berlin)

Host interface
Mini PCI Express
Output interface
Serial
Expansion card standard
PCIe 1.1
Serial ports quantity
2
Product image: StarTech.com 2-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 / 6

Delivered total

EUR 60,43

Sold by 0815 DE · PEX2S953LP · New

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2 live offers

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Observed item prices

0815 DE, one listing

This is the item price of one seller's listing, not a delivered total and not the best price across sellers.

Observed prices over time

Latest
EUR60,4329 Oct 2026
Lowest
Unchanged since 9 Oct 2026
Days without an observation are left blank: no price is drawn for them.
Observed prices over time
DayLowestHighestLastChecks
29 Oct 2026EUR60,43EUR60,43EUR60,432
28 Oct 2026EUR60,43EUR60,43EUR60,433
27 Oct 2026EUR60,43EUR60,43EUR60,431
12 Oct 2026EUR60,43EUR60,43EUR60,431
11 Oct 2026EUR60,43EUR60,43EUR60,433
10 Oct 2026EUR60,43EUR60,43EUR60,432
9 Oct 2026EUR60,43EUR60,43EUR60,433

About this product

StarTech.com 2-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, Mini PCI Express, Serial, PCIe 1.1, RS-232, 222366 h, CE, FCC

Read the full source description

PCI Express to Serial Adapter | 921.4Kbps | Windows® and Linux® Compatible

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 • 256-byte depth FIFO per transmitter and receiver • 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.

Text from Specs Icecat.

Specifications

39 specifications

Product data: Specs Icecat

GTIN
00065030881166
MPN
PEX2S953LP
Ports & interfaces6
Host interface
Mini PCI Express
Output interface
Serial
Expansion card standard
PCIe 1.1
Serial ports quantity
2
Serial interface type
RS-232
Peripheral (Molex) power connectors (4-pin)
1
Design3
Internal
Yes
Mean time between failures (MTBF)
222366 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 IoT Enterprise, 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
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
67 mm
Depth
98 mm
Height
18 mm
Weight
55.6 g
Packaging data7
Quantity
1
Mounting brackets included
Yes
Manual
Yes
Package width
144 mm
Package depth
175 mm
Package height
33 mm
Package weight
146.4 g
Logistics data5
Harmonized System (HS) code
84733020
Products per master (outer) case
75 pc(s)
Master (outer) case width
693 mm
Master (outer) case length
360 mm
Master (outer) case height
338 mm