Industrial Expansion Cards for I/O, Networking, Vision and More

Upgrade your embedded or industrial computing system with our broad range of Expansion Cards, built to extend functionality across multiple applications. From DAQ and motion control to high-speed networking and image acquisition, these cards offer reliable performance in demanding environments.

We supply everything from serial and USB expansion cards to frame grabbers, fieldbus interfaces, and network adaptors, with form factors and bus support including PCI, PCIe, PC/104, and MiniPCIe.

Need help choosing the right expansion card? Get in touch with our friendly team to match the right card to your application.

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Expansion Cards

Showing 60 of 95 Serial Cards items

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3541-KT
Sealevel 3541-KT
4 Port RS-232/422/485 PC/104 Serial Card Kit (C4.104-ULTRA Kit)
UIO-4030
Advantech UIO-4030
UIO40-Express I/O Expansion Card – 1x RS-485 – 1x RS-232 – 4x DI & 4x DO
£45.00
PCI-1622C
1 in stock
Advantech PCI-1622C
8 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection
£442.50
POS-104UL
Moxa POS-104UL
4 Port RS-232 Low Profile PCI Serial Card – Power Over Serial
£112.00
PCI-1622B
Advantech PCI-1622B
8 Port RS-232/422/485 PCI Serial Card – Surge Protection
£218.50
PCI-1620B
Advantech PCI-1620B
8 Port RS-232 PCI Serial Card – Surge Protection
£147.00
PCI-1620A
Advantech PCI-1620A
8 Port RS-232 PCI Serial Card
£118.50
PCI-1612C
Advantech PCI-1612C
4 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection
£363.50
PCI-1612B
Advantech PCI-1612B
4 Port RS-232/422/485 PCI Serial Card – Surge Protection
£145.50
PCI-1610C
Advantech PCI-1610C
4 Port RS-232 PCI Serial Card – Surge – Isolation Protection
PCI-1610B
Advantech PCI-1610B
4 Port RS-232 PCI Serial Card – Surge Protection
£104.00
PCI-1604C
Advantech PCI-1604C
2 Port RS-232 PCI Serial Card
£183.50
Scalable Platforms Designed for Serial Integration
Discover our range of Expandable Embedded PCs.

Serial cards extend the connectivity of your system, while our Expandable Embedded Box PCs provide the right foundation. With multiple expansion slots and ruggedised designs, they ensure reliable performance for a range of industrial applications.

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Vecow RCX-2750 Series
PCI-1602C
Advantech PCI-1602C
2 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection
£150.50
PCI-1602B
3 in stock
Advantech PCI-1602B
2 Port RS-232/422/485 PCI Serial Card – Surge Protection
£93.00
PCIE-1622C
Advantech PCIE-1622C
8 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection
£426.00
PCIE-1622B
Advantech PCIE-1622B
8 Port RS-232/422/485 PCI Express Serial Card – Surge Protection
£158.50
PCIE-1620A
Advantech PCIE-1620A
8 Port RS-232 PCI Express Serial Card – Surge Protection
£121.00
PCIE-1612C
Advantech PCIE-1612C
4 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection
£241.50
PCIE-1612B
Advantech PCIE-1612B
4 Port RS-232/422/485 PCI Express Serial Card – Surge Protection
£135.00
PCIE-1610B
Advantech PCIE-1610B
4 Port RS-232 PCI Express Serial Card – Surge Protection
£98.00
PCIE-1604C
Advantech PCIE-1604C
2 Port RS-232 PCI Express Serial Card – Surge – Isolation Protection
£151.50
PCIE-1604B
Advantech PCIE-1604B
2 Port RS-232 PCI Express Serial Card – Surge Protection
£76.00
PCIE-1602C
Advantech PCIE-1602C
2 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection
£148.00
PCIE-1602B
4 in stock
Advantech PCIE-1602B
2 Port RS-232/422/485 PCI Express Serial Card – Surge Protection
£94.50
MIC-3955
Advantech MIC-3955
4 Port RS-232/422/485 3U Compactpci Serial Card
£413.50
CB-134I
Moxa CB-134I
4 Port RS-422/485 Isolated PC/104+ Module, 0°C to +55°C
£429.50
CB-114
Moxa CB-114
4 Port RS-232/422/485 PC/104+ Module, 0°C to +55°C
£262.00
CB-108
Moxa CB-108
8 Port RS-232 PC/104+ Module, 0°C to +55°C
£242.00
CA-134I
Moxa CA-134I
4 Port RS-422/485 Isolated PC/104 Module, 0°C to +55°C
£325.50
CA-132/132I
Moxa CA-132/132I
2 Port RS-422/485 PC/104 Module
£120.00
CA-114
Moxa CA-114
4 Port RS-232/422/485 PC/104 Module, 0°C to +55°C
£179.50
CA-108
Moxa CA-108
8 Port RS-232 PC/104 Module, 0°C to +55°C
£179.50
CA-104
Moxa CA-104
4 Port RS-232 PC/104 Module, 0°C to +55°C
£108.00
CP-168U
3 in stock
Moxa CP-168U
8 Port RS-232 Universal PCI Serial Card, 0°C to +55°C
£149.50
CP-168EL-A
Moxa CP-168EL-A
8 Port RS-232 PCI Express Serial Card
£203.50
CP-138U
Moxa CP-138U
8 Port RS-422/485 Universal PCI Serial Card, 0°C to +55°C
£304.00
CP-138U-I
Moxa CP-138U-I
8 Port Isolated RS-422/485 Universal PCI Serial Card, 0°C to +55°C
£584.50
CP-138E-A-I
Moxa CP-138E-A-I
8 Port Isolated RS-422/485 PCI Express Serial Card – 4kV Surge Protection
£695.50
CP-134U-I
Moxa CP-134U-I
4 Port Isolated RS-422/485 Universal PCI Serial Card – 15kV ESD Protection
£416.50
CP-134U
Moxa CP-134U
4 Port RS-422/485 Universal PCI Serial Card – 15kV ESD Protection
£180.50
CP-134EL-A-I
Moxa CP-134EL-A-I
4 Port RS-232/422/485 Isolated PCI Express Serial Card – 4kV Surge Protection
£383.50
CP-132UL-I
Moxa CP-132UL-I
2 Port Isolated RS-422/485 Low Profile Universal PCI Serial Card
£201.50
CP-132UL
Moxa CP-132UL
2 Port RS-422/485 Low Profile Universal PCI Serial Card
£91.00
CP-132EL
Moxa CP-132EL
2 Port RS-422/485 Low Profile PCI Express Serial Card – DB9M cable
£114.50
CP-118U
4 in stock
Moxa CP-118U
8 Port RS-232/422/485 Universal PCI Serial Card, 0°C to +55°C
£311.50
CP-118U-I
Moxa CP-118U-I
8 Port Isolated RS-232/422/485 Universal PCI Serial Card, 0°C to +55°C
£744.50
CP-118EL-A
5 in stock
Moxa CP-118EL-A
8 Port RS-232/422/485 PCI Express Serial Card
£374.00
CP-118E-A-I
2 in stock
Moxa CP-118E-A-I
8 Port RS-232/422/485 Isolated PCI Express Serial Card – 4kV Surge Protection
£804.50
CP-116E-A
Moxa CP-116E-A
16 Port RS-232/422/485 PCI Express Serial Card – 4kV Surge Protection
£735.00
CP-114UL-I
Moxa CP-114UL-I
4 Port Isolated RS-232/422/485 Low Profile Universal PCI Serial Card, 0°C to +55°C
£413.00
CP-114UL
Moxa CP-114UL
4 Port RS-232/422/485 Low Profile Universal PCI Serial Card
£186.50
CP-114EL-I
Moxa CP-114EL-I
4 Port Isolated RS-232/422/485 Low Profile PCI Express Serial Card
£393.00
CP-114EL
4 in stock
Moxa CP-114EL
4 Port RS-232/422/485 Low Profile PCI Express Serial Card
£195.00
CP-112UL-I
Moxa CP-112UL-I
2 Port Isolated RS-232/422/485 Low Profile Universal PCI Serial Card
£201.00
CP-112UL
Moxa CP-112UL
2 Port RS-232/422/485 Low Profile Universal PCI Serial Card
£114.00
CP-104UL
Moxa CP-104UL
4 Port RS-232 Low Profile Universal PCI Serial Card
£101.00
CP-104JU
Moxa CP-104JU
4 Port RS-232 Low Profile Universal PCI Serial Card: RJ45 Ports, 0°C to +55°C
£114.50
CP-104EL-A
13 in stock
Moxa CP-104EL-A
4 Port RS-232 Low Profile PCI Express Serial Card
£158.50
CP-102UL
Moxa CP-102UL
2 Port RS-232 Low Profile Universal PCI Serial Card
£60.50
CP-102U
Moxa CP-102U
2 Port RS-232 Universal PCI Serial Card, 0°C to +55°C
£53.50
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Showing 60 of 95

Expanding Your Connectivity
Serial cards add RS-232, RS-422 or RS-485 ports to a computer. These ports are still widely used in industrial automation, control systems and legacy equipment. Adding a card allows modern PCs to connect directly with older hardware.

Made for Industrial Reliability
The cards are designed to deliver stable communication even in environments with electrical noise or vibration. Isolation options help protect both the card and connected equipment. This level of robustness makes them dependable for continuous operation.

Easy to Integrate Into Your System
Cards can be ordered on their own or supplied as part of a complete computer build. They come with full documentation and driver support to simplify installation. This ensures reliable communication without lengthy setup or troubleshooting.