Best Serial Port Cards Deals Online in the UK (25 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
Sxhlseller

New
Sxhlseller 2 Port PCI Express RS232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit for Linux, PCIe S
2 SERIAL PORTS: PCIE RS232 allows users to add two RS232 BD9 serial ports to desktop computers or industrial equipment t

£12.13
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StarTech

New
StarTech.com 2-Port PCI Express Serial Card with 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card (PEX2S10
MEETS INDUSTRY STANDARDS: The 2-port PCI express serial card is compliant with PCI Express 1.0a specification, and it's

£46.99
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Used
ISA 8 bit XT port card different type serial parallel choose
Jumpered to enable all ports. Setting up is straightforward, but if there is any issue needed them I am more than happy

£10.99
Multibao

New
Multibao PCI-Express 2 ports Serial Card, Dual Port Serial RS-232 DB9 COM Card for Desktop PC
Compliant with Single-Lane (x1) PCI-Express specification revision 1.0a.

£9.98
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Used
Dell Sunix Serial Port RS-232 PCI Card Low Profile / 0NT0HM
MONITOR BEZEL OR STAND COLOUR OR DESIGN MAY DIFFER. HOWEVER, THIS DOES'T AFFECT ANY FUNCTIONALITY. SKYTECH SOLUTIONS UK

£9.99
Zerone

New
PCI-E to RS232 PCI Express Serial Card 2 Ports Adapter Card for Windows2000/xp/server 2003/xp 64-bit/Vista/7/8/Linux/Dos
Pci-E To Rs232 Pci E Card: PCI-Express rate 2.5Gb/s full duplex channel

£12.96 £17.30
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Best Value
StarTech

New
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Dual Serial
2 PORT SERIAL CARD: Serial controller card w/16950 UART based on ASIX AX99100, allows 2x DB9 ports w/bi-directional RS23

£42.13 £44.60
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Used
Dell Sunix Serial Port RS-232 PCI Card Low Profile / 0NT0HM / 039G9N

£10.95
StarTech

New
StarTech.com 2-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9
2 PORT SERIAL CARD: Serial controller card w/16950 UART based on ASIX AX99100, allows 2x DB9 ports w/bi-directional RS23

£51.13
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Used
Serial Port SFF Card
The Serial Port SFF Card is a versatile external interface card designed for easy connectivity with serial devices. Manu

£1.16
StarTech

New
StarTech.com 2-Port Serial PCIe Card, Dual-Port PCI Express to RS232/RS422/RS485 DB9 Serial Card, Standard/Low-Profile B
2-PORT PCIE SERIAL CARD: On-board DIP switches allow each DB9 serial port to operate in its own independent mode, enabli

£74.59
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StarTech

New
StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9
1 PORT SERIAL CARD: Serial controller card w/ 16950 UART based on ASIX AX99100, allows 1x DB9 port w/bi-directional RS23

£40.78
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Used
PCI Card 1 x Parallel 2x Serial RS232 COM Ports MOSCHIP MCS9835CV FG-PIO9835
Working well.

£13.99
StarTech

New
StarTech.com 1-port PCI Express RS232 Serial Adapter Card - PCIe RS232 Serial Host Controller Card - PCIe to Serial DB9
1 PORT SERIAL CARD: Serial controller card with 16550 UART based on ASIX MCS9922CV-AA, allows 1x DB9 port with bi-direct

£42.80
Used
2 Port Serial RS-232 Internal PCI Card
Photos are of the actual item for sale.

£5.01
zdyCGTime

New
zdyCGTime RS232 Serial Port Bracket Cable Connector Adapter,1 DB9 Male Port to 10 Pin Female Header Cable Serial Port Br
DB9 (Male) Serial Ports to 10 pin (2x5) IDC (Female)Connector

£8.40
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Used
8 port serial port cards JOB LOT RS-232 Chase Research AT-FAST PCI-FAST
JOB LOT of CHASE RESEARCH 8 port RS232 FAST CARDS. 2 x PCI FAST 8. 1 x 8 port 'Octapus' connecting lead. (Lead is used a

£51.66
Used
BrainBoxes IX-400 4 Port RS232 Low Profile PCI Express Serial Card
This card provides 4 industry standard 9 pin RS232 serial COM ports in a single PCI Express slot. As PCI Express is full

£31.90
New
PArallel / serial port card printer RS-232 16C550 ISA BOXED NEW OLD STOCK
There is another set of serial pins with an empty 16C550 socket. One parallel port on bracket, and one serial port pins

£13.99
Used
XT AT 8 bit ISA gameport paralell port card serial RS-232
One serial port with pins, other UART IC not populated. All pictured.

£14.99
New
Brain Boxes Serial Port RS232 Card
Native RS232 port with advanced transfer options.

£21.50
Used
StarTech 1 Port PCIe Serial Port Card Low Profile PEX1S952LP Ref: 1052
Selectable power output on pin 9 for the serial port.

£13.95
Used
4 Port Low Profile Native RS232 PCI Express Serial Card with 16950 UART
High Performance Oxford 16950 UART. Selectable power output on pin 9 for the serial port.

£5.00
Used
Socket Serial I/O PC Cards Dual Port (RS-232) (850-00092 G)
COMES AS IS, REF: CD_1

£45.00
Used
BrainBoxes PX-701 4 Port RS232 PCI Express Serial Card - High Profile
MONITOR BEZEL OR STAND COLOUR OR DESIGN MAY DIFFER. HOWEVER, THIS DOES'T AFFECT ANY FUNCTIONALITY. HIGH PROFILE.

£79.99

25 Serial Port Cards deals are available from: Amazon, eBay stores, starting from £1.16.
The biggest discount we found is 10%% on Sxhlseller 2 Port PCI Express RS232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit for Linux, PCIe Serial Expansion Card PCIe Serial Host Controller Card at Amazon.
The lowest price we found is £1.16 while the highest is £79.99.
Prices for the best Serial Port Cards deals average at £26.88.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Serial Port Cards.