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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CP-102U
Moxa CP-102U
2 Port RS-232 Universal PCI Serial Card, 0°C to +55°C
£54.00
CP-102UL
Moxa CP-102UL
2 Port RS-232 Low Profile Universal PCI Serial Card
£60.50
CA-104
Moxa CA-104
4 Port RS-232 PC/104 Module, 0°C to +55°C
£108.00
CA-108
Moxa CA-108
8 Port RS-232 PC/104 Module, 0°C to +55°C
£179.50
CA-114
Moxa CA-114
4 Port RS-232/422/485 PC/104 Module, 0°C to +55°C
£179.50
CB-134I
Moxa CB-134I
4 Port RS-422/485 Isolated PC/104+ Module, 0°C to +55°C
£430.00
CP-102EL
Moxa CP-102EL
2 Port RS-232 Low Profile PCI Express Serial Card
£94.00
CP-102N
Moxa CP-102N
2 Port RS-232 Mini PCI Express Serial Card
£121.00
CA-132/132I
Moxa CA-132/132I
2 Port RS-422/485 PC/104 Module
£120.50
CA-134I
Moxa CA-134I
4 Port RS-422/485 Isolated PC/104 Module, 0°C to +55°C
£326.00
CP-114EL
4 in stock
Moxa CP-114EL
4 Port RS-232/422/485 Low Profile PCI Express Serial Card
£195.50
CP-114EL-I
Moxa CP-114EL-I
4 Port Isolated RS-232/422/485 Low Profile PCI Express Serial Card
£393.50
CP-104JU
Moxa CP-104JU
4 Port RS-232 Low Profile Universal PCI Serial Card: RJ45 Ports, 0°C to +55°C
£114.00
CP-104UL
Moxa CP-104UL
4 Port RS-232 Low Profile Universal PCI Serial Card
£101.00
CB-108
Moxa CB-108
8 Port RS-232 PC/104+ Module, 0°C to +55°C
£242.50
CB-114
Moxa CB-114
4 Port RS-232/422/485 PC/104+ Module, 0°C to +55°C
£262.00
CP-112UL
Moxa CP-112UL
2 Port RS-232/422/485 Low Profile Universal PCI Serial Card
£114.50
CP-112UL-I
Moxa CP-112UL-I
2 Port Isolated RS-232/422/485 Low Profile Universal PCI Serial Card
£201.00
POS-104UL
Moxa POS-104UL
4 Port RS-232 Low Profile PCI Serial Card – Power Over Serial
£112.00
UIO-4030
Advantech UIO-4030
UIO40-Express I/O Expansion Card – 1x RS-485 – 1x RS-232 – 4x DI & 4x DO
£42.00
CP-134EL-A-I
Moxa CP-134EL-A-I
4 Port RS-232/422/485 Isolated PCI Express Serial Card – 4kV Surge Protection
£384.00
CP-134U
Moxa CP-134U
4 Port RS-422/485 Universal PCI Serial Card – 15kV ESD Protection
£181.00
CP-134U-I
Moxa CP-134U-I
4 Port Isolated RS-422/485 Universal PCI Serial Card – 15kV ESD Protection
£417.00
CP-132EL
Moxa CP-132EL
2 Port RS-422/485 Low Profile PCI Express Serial Card – DB9M cable
£115.00
CP-132UL
Moxa CP-132UL
2 Port RS-422/485 Low Profile Universal PCI Serial Card
£91.00
CP-132UL-I
Moxa CP-132UL-I
2 Port Isolated RS-422/485 Low Profile Universal PCI Serial Card
£202.00
CP-114UL
Moxa CP-114UL
4 Port RS-232/422/485 Low Profile Universal PCI Serial Card
£186.50
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
£413.50
CP-138E-A-I
Moxa CP-138E-A-I
8 Port Isolated RS-422/485 PCI Express Serial Card – 4kV Surge Protection
£696.50
CP-138U
Moxa CP-138U
8 Port RS-422/485 Universal PCI Serial Card, 0°C to +55°C
£304.50
CP-138U-I
Moxa CP-138U-I
8 Port Isolated RS-422/485 Universal PCI Serial Card, 0°C to +55°C
£585.50
CP-116E-A
Moxa CP-116E-A
16 Port RS-232/422/485 PCI Express Serial Card – 4kV Surge Protection
£736.00
CP-168EL-A
Moxa CP-168EL-A
8 Port RS-232 PCI Express Serial Card
£204.00
CP-168U
3 in stock
Moxa CP-168U
8 Port RS-232 Universal PCI Serial Card, 0°C to +55°C
£149.50
CP-118U-I
Moxa CP-118U-I
8 Port Isolated RS-232/422/485 Universal PCI Serial Card, 0°C to +55°C
£745.50
3588
Sealevel 3588
8 Port RS-485 PC/104 Serial Card
5102
Sealevel 5102
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Synchronous Serial Card
5102e
Sealevel 5102e
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Express Synchronous Serial Card
£534.00
3512
Sealevel 3512
1 Port RS-232/422/485/530/530A/V.35 PC/104 Synchronous Serial Card
3514
Sealevel 3514
1 Port RS-232/422/485/530/530A/V.35 PC/104+ Synchronous Serial Card
3540
Sealevel 3540
4 Port RS-232/422/485 PC/104 Serial Card
3541-KT
Sealevel 3541-KT
4 Port RS-232/422/485 PC/104 Serial Card Kit (C4.104-ULTRA Kit)
7204e
Sealevel 7204e
2 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
7205
Sealevel 7205
2 Port RS-232/422/485 Low Profile PCI Serial Card
£674.50
7205ec
Sealevel 7205ec
2 Port RS-232/422/485 Low Profile PCI Express Asynchronous Serial Card
£253.00
7402e
Sealevel 7402e
4 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
7406e
Sealevel 7406e
4 Port RS-232 Low Profile PCI Express Asynchronous Serial Card
7406
Sealevel 7406
4 Port RS-232 Low Profile PCI Serial Card
£481.50
7802ec
Sealevel 7802ec
8 Port RS-422/485 Low Profile PCI Express Asynchronous Serial Card
£415.50
5402e
Sealevel 5402e
4 Port RS-232/422/485/530/530A/V.35 PCI Express Synchronous Serial Card
£1,473.00
7104
Sealevel 7104
1 Port RS-232 Low Profile PCI Serial Card
£445.00
7106
Sealevel 7106
1 Port RS-232/422/485/530 Low Profile PCI Serial Card
£437.00
5103
Sealevel 5103
1 Port RS-232 Low Profile PCI Synchronous Serial Card
5103e
Sealevel 5103e
1 Port RS-232 Low Profile PCI Express Synchronous Serial Card
£453.50
5104
Sealevel 5104
1 Port RS-232/422/485/530/530A/V.35 Low Profile PCI Synchronous Serial Card
7201
Sealevel 7201
2 Port RS-232/422/485 PCI Serial Card
7202
Sealevel 7202
2 Port RS-232 PCI Serial Card
7203e
Sealevel 7203e
2 Port RS-232/422/485 Isolated PCI Express Asynchronous Serial Card
£205.00
7106e
Sealevel 7106e
1 Port RS-232/422/485/530 Low Profile PCI Express Asynchronous Serial Card
£229.00
7108
1 in stock
Sealevel 7108
1 Port RS-232/422/485 Isolated Low Profile PCI Serial Card
£636.00
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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.