StarTech.com · Interface Cards/Adapters

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 Car price in United Kingdom

Model PEX2S953LPMPN PEX2S953LPEAN 065030881166

Weight55.6 g
Host interfaceMini PCI Express
InternalYes
ChipsetAsix AX99100

Lowest price incl. delivery

£38.90

at PCHUB.UKFree deliveryIn stock

2 stores
Range £38.90 – £53.98
Save up to £15.08 vs. the dearest store
2 in stock
1 with free delivery
Checked 5 Oct 2026, 18:25 UTC

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Full specifications and side-by-side comparison

Prices in United Kingdom

2 stores · prices in GBP · updated 5 Oct 2026, 18:25 UTC

Lowest price£38.90at PCHUB.UK · free shippingGo to PCHUB.UK

Price range across 2 offers

Save up to £15.08 (28%) by choosing the cheapest store

2 of 2 stores in stock
1 with free shipping
Checked 5 Oct 2026, 18:25 UTC

PCHUB.UKLowest priceStarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 In stockFree shipping
£38.90incl. free shipping
Go to store : PCHUB.UK (opens in a new tab)
Back to the OfficeStarTech.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 In stock£4.99 shipping
£53.98£48.99 + £4.99 shipping+£15.08 (39%) vs lowest
Go to store : Back to the Office (opens in a new tab)

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Product details

Identification

Brand: StarTech.com
Product: 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9 - 16950 UART - Low Profile Expansion Car
Full name: 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 Car
Manufacturer part number: PEX2S953LP
EAN / UPC: 065030881166
Category: Interface Cards/Adapters

39 specifications from the manufacturer's data sheet

Ports & interfaces

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

Design

Internal	Yes
Mean time between failures (MTBF)	222366 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

Operational conditions

Operating temperature (T-T)	-10 - 80 °C
Storage temperature (T-T)	-20 - 100 °C
Operating relative humidity (H-H)	5 - 85%

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 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterpris
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 details

Compliance certificates	RoHS

Weight & dimensions

Width	67 mm
Depth	98 mm
Height	18 mm
Weight	55.6 g

Packaging data

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 data

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