Industrial Serial Cards and Adaptors for System Expansion

Expand your system’s connectivity with our wide range of industrial serial cards and adaptors. Available in single and multi-port configurations, these boards support popular bus interfaces including PCI, PCI Express, PC/104, and Mini PCIe, making them ideal for both legacy integration and modern embedded applications.

If you're adding RS-232, RS-422, or RS-485 ports to a workstation or embedded PC, our serial cards offer reliable, high-performance communication in demanding environments.

Not sure which interface you need? Our technical specialists are here to help.

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Showing 60 of 110 Serial Cards & Adaptors items

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1 option available

Moxa CP-102EL Series

2 Port RS-232 Low Profile PCI Express Serial Card

From £96.50 (exc. VAT)

2 options available

Moxa CP-102N Series

2 Port RS-232 Mini PCI Express Serial Card

From £124.50 (exc. VAT)

2 options available

Moxa CP-102U Series

2 Port RS-232 Universal PCI Serial Card, 0°C to +55°C

From £55.50 (exc. VAT)

2 options available

Moxa CP-102UL Series

2 Port RS-232 Low Profile Universal PCI Serial Card

From £62.50 (exc. VAT)

3 options available

Moxa CP-104EL-A Series

4 Port RS-232 Low Profile PCI Express Serial Card

From £163.50 (exc. VAT)

2 options available

Moxa CP-104JU Series

4 Port RS-232 Low Profile Universal PCI Serial Card: RJ45 Ports, 0°C to +55°C

From £118.00 (exc. VAT)

3 options available

Moxa CP-104UL Series

4 Port RS-232 Low Profile Universal PCI Serial Card

From £104.00 (exc. VAT)

2 options available

Moxa CP-112UL Series

2 Port RS-232/422/485 Low Profile Universal PCI Serial Card

From £117.50 (exc. VAT)

2 options available

Moxa CP-112UL-I Series

2 Port Isolated RS-232/422/485 Low Profile Universal PCI Serial Card

From £207.00 (exc. VAT)

3 options available

Moxa CP-114EL Series

4 Port RS-232/422/485 Low Profile PCI Express Serial Card

From £200.50 (exc. VAT)

3 options available

Moxa CP-114EL-I Series

4 Port Isolated RS-232/422/485 Low Profile PCI Express Serial Card

From £404.50 (exc. VAT)

4 options available

Moxa CP-114UL Series

4 Port RS-232/422/485 Low Profile Universal PCI Serial Card

From £192.00 (exc. VAT)

4 options available

Moxa CP-114UL-I Series

4 Port Isolated RS-232/422/485 Low Profile Universal PCI Serial Card, 0°C to +55°C

From £425.00 (exc. VAT)

1 option available

Moxa CP-116E-A Series

16 Port RS-232/422/485 PCI Express Serial Card – 4kV Surge Protection

From £757.00 (exc. VAT)

1 option available

Moxa CP-118E-A-I Series

8 Port RS-232/422/485 Isolated PCI Express Serial Card – 4kV Surge Protection

From £828.50 (exc. VAT)

1 option available

Moxa CP-118EL-A Series

8 Port RS-232/422/485 PCI Express Serial Card

From £385.50 (exc. VAT)

2 options available

Moxa CP-118U-I Series

8 Port Isolated RS-232/422/485 Universal PCI Serial Card, 0°C to +55°C

From £766.50 (exc. VAT)

2 options available

Moxa CP-118U Series

8 Port RS-232/422/485 Universal PCI Serial Card, 0°C to +55°C

From £321.00 (exc. VAT)

1 option available

Moxa CP-132EL Series

2 Port RS-422/485 Low Profile PCI Express Serial Card – DB9M cable

From £118.00 (exc. VAT)

2 options available

Moxa CP-132UL Series

2 Port RS-422/485 Low Profile Universal PCI Serial Card

From £93.50 (exc. VAT)

2 options available

Moxa CP-132UL-I Series

2 Port Isolated RS-422/485 Low Profile Universal PCI Serial Card

From £207.50 (exc. VAT)

3 options available

Moxa CP-134EL-A-I Series

4 Port RS-232/422/485 Isolated PCI Express Serial Card – 4kV Surge Protection

From £395.00 (exc. VAT)

1 option available

Moxa CP-134U Series

4 Port RS-422/485 Universal PCI Serial Card – 15kV ESD Protection

From £186.00 (exc. VAT)

4 options available

Moxa CP-134U-I Series

4 Port Isolated RS-422/485 Universal PCI Serial Card – 15kV ESD Protection

From £429.00 (exc. VAT)

1 option available

Moxa CP-138E-A-I Series

8 Port Isolated RS-422/485 PCI Express Serial Card – 4kV Surge Protection

From £716.00 (exc. VAT)

2 options available

Moxa CP-138U-I Series

8 Port Isolated RS-422/485 Universal PCI Serial Card, 0°C to +55°C

From £601.50 (exc. VAT)

2 options available

Moxa CP-138U Series

8 Port RS-422/485 Universal PCI Serial Card, 0°C to +55°C

From £313.00 (exc. VAT)

1 option available

Moxa CP-168EL-A Series

8 Port RS-232 PCI Express Serial Card

From £209.50 (exc. VAT)

2 options available

Moxa CP-168U Series

8 Port RS-232 Universal PCI Serial Card, 0°C to +55°C

From £153.50 (exc. VAT)

1 option available

Advantech PCIE-1602B Series

2 Port RS-232/422/485 PCI Express Serial Card – Surge Protection

From £93.00 (exc. VAT)

1 option available

Advantech PCIE-1602C Series

2 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection

From £145.00 (exc. VAT)

1 option available

Advantech PCIE-1604B Series

2 Port RS-232 PCI Express Serial Card – Surge Protection

From £74.50 (exc. VAT)

1 option available

Advantech PCIE-1604C Series

2 Port RS-232 PCI Express Serial Card – Surge – Isolation Protection

From £149.00 (exc. VAT)

1 option available

Advantech PCIE-1610B Series

4 Port RS-232 PCI Express Serial Card – Surge Protection

From £96.00 (exc. VAT)

1 option available

Advantech PCIE-1612B Series

4 Port RS-232/422/485 PCI Express Serial Card – Surge Protection

From £132.50 (exc. VAT)

1 option available

Advantech PCIE-1612C Series

4 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection

From £237.50 (exc. VAT)

1 option available

Advantech PCIE-1620A Series

8 Port RS-232 PCI Express Serial Card – Surge Protection

From £119.00 (exc. VAT)

1 option available

Advantech PCIE-1622B Series

8 Port RS-232/422/485 PCI Express Serial Card – Surge Protection

From £150.00 (exc. VAT)

1 option available

Advantech PCIE-1622C Series

8 Port RS-232/422/485 PCI Express Serial Card – Surge – Isolation Protection

From £418.50 (exc. VAT)

3 options available

Moxa POS-104UL Series

4 Port RS-232 Low Profile PCI Serial Card – Power Over Serial

From £115.00 (exc. VAT)

1 option available

Advantech PCI-1602B Series

2 Port RS-232/422/485 PCI Serial Card – Surge Protection

From £91.00 (exc. VAT)

1 option available

Advantech PCI-1602C Series

2 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection

From £148.00 (exc. VAT)

1 option available

Advantech PCI-1604C Series

2 Port RS-232 PCI Serial Card

From £180.00 (exc. VAT)

1 option available

Advantech PCI-1610B Series

4 Port RS-232 PCI Serial Card – Surge Protection

From £102.00 (exc. VAT)

1 option available

Advantech PCI-1610C Series

4 Port RS-232 PCI Serial Card – Surge – Isolation Protection

1 option available

Advantech PCI-1612B Series

4 Port RS-232/422/485 PCI Serial Card – Surge Protection

From £143.00 (exc. VAT)

1 option available

Advantech PCI-1612C Series

4 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection

From £357.00 (exc. VAT)

1 option available

Advantech PCI-1620A Series

8 Port RS-232 PCI Serial Card

From £116.50 (exc. VAT)

1 option available

Advantech PCI-1620B Series

8 Port RS-232 PCI Serial Card – Surge Protection

From £145.00 (exc. VAT)

1 option available

Advantech PCI-1622B Series

8 Port RS-232/422/485 PCI Serial Card – Surge Protection

From £214.50 (exc. VAT)

1 option available

Advantech PCI-1622C Series

8 Port RS-232/422/485 PCI Serial Card – Surge – Isolation Protection

From £414.50 (exc. VAT)

2 options available

Moxa CA-114 Series

4 Port RS-232/422/485 PC/104 Module, 0°C to +55°C

From £184.50 (exc. VAT)

4 options available

Moxa CA-132/132I Series

2 Port RS-422/485 PC/104 Module

From £124.00 (exc. VAT)

2 options available

Moxa CA-134I Series

4 Port RS-422/485 Isolated PC/104 Module, 0°C to +55°C

From £335.00 (exc. VAT)

2 options available

Moxa CA-108 Series

8 Port RS-232 PC/104 Module, 0°C to +55°C

From £184.50 (exc. VAT)

2 options available

Moxa CA-104 Series

4 Port RS-232 PC/104 Module, 0°C to +55°C

From £111.00 (exc. VAT)

2 options available

Moxa CB-134I Series

4 Port RS-422/485 Isolated PC/104+ Module, 0°C to +55°C

From £442.00 (exc. VAT)

2 options available

Moxa CB-114 Series

4 Port RS-232/422/485 PC/104+ Module, 0°C to +55°C

From £269.50 (exc. VAT)

2 options available

Moxa CB-108 Series

8 Port RS-232 PC/104+ Module, 0°C to +55°C

From £249.50 (exc. VAT)

1 option available

Sealevel 5402e Series

4 Port RS-232/422/485/530/530A/V.35 PCI Express Synchronous Serial Card

From £1,473.00 (exc. VAT)

Showing 60 of 110

Learn More About Serial Cards & Adaptors

Why Use Serial Cards in Modern Systems?

Many modern PCs, servers and embedded platforms no longer include native serial ports. Serial expansion cards restore RS-232, RS-422 or RS-485 connectivity, allowing engineers to continue interfacing with existing industrial equipment and control systems without redesigning their setup.

How Do Adaptors Add Flexibility?

Serial adaptors provide a simple way to convert between different serial standards or between USB and serial interfaces. This flexibility makes it easier to connect a wide range of legacy devices, support temporary installations or accommodate changes in system requirements without replacing hardware.

Do Serial Cards and Adaptors Support Multiple Operating Systems?

Many industrial serial cards and adaptors are supplied with driver support for common operating systems, including Windows, Linux and a range of embedded platforms. This ensures they can be deployed across different environments, from control room PCs to embedded industrial computers. Checking operating system compatibility early helps avoid integration issues and ensures long-term support as systems are updated or expanded.

What Is the Difference Between PCIe and USB Serial Solutions?

PCIe serial cards are installed directly into a PC or industrial computer, providing fixed, high-reliability serial ports that are well suited to permanent installations and continuous operation. USB serial adaptors connect externally, offering greater flexibility and portability, making them useful for temporary setups, service work or systems where internal expansion slots are not available. The choice depends on whether stability or flexibility is the primary requirement.

What Benefits Do Industrial Models Offer?

Industrial serial cards and adaptors are designed for reliable operation in demanding environments. Features such as enhanced electrical isolation, extended operating temperature ranges and robust component selection help ensure long service life in applications such as factory automation, transport and utilities.

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Industrial Serial Cards and Adaptors for System Expansion

Learn More About Serial Cards & Adaptors

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