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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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Serial Cards & Adaptors

Showing 60 of 110 Serial Cards & Adaptors items

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OPT 8B+

VHDCI 68 to 8x DB25(M) Connection Box

OPT8-RJ45

DB62(M) to 8 X RJ45 (8-Pin) Connection Box

OPT8-M9+

VHDCI 68 to 8x DB9(M) Connection Box

OPT8-M9

DB62(M) to 8x DB9(M) Connection Box

OPT 8S

DB62(M) to 8x DB25(F) Connection Box: Surge Protection

OPT 8B

DB62(M) to 8x DB25(M) Connection Box

OPT 8A

DB62(M) to 8x DB25(F) Connection Box

NP21103

DB25 Terminal Block Kit for RS-422/485

DB116-ROHS

Sealevel DB116-ROHS

DB9 Male to RJ45 - Preconfigured for 4161/4163 (RS-232)

Sealevel DB113-ROHS

DB9 Male to DB9 Female Low Profile Null Modem Adapter

DB112-ROHS

Sealevel DB112-ROHS

DB9 Female to RJ45 - Preconfigured for 7107 (RS-485)

DB111-ROHS

Sealevel DB111-ROHS

DB9 Female to RJ45 Modular Adapter (RS-485 Pinout) for SeaI/O Modules

DB109-ROHS

Sealevel DB109-ROHS

DB9 Female to RJ45 Modular Adapter (RS-232 Pinout) for SeaI/O Modules

Sealevel DB104-ROHS

DB25 Female (RS-422) to DB9 Female (Opto 22 Optomux) Converter

Sealevel DB103-ROHS

DB9 Female (RS-422) to DB9 Female (Opto 22 Optomux) Converter

Sealevel 3541-KT

4 Port RS-232/422/485 PC/104 Serial Card Kit (C4.104-ULTRA Kit)

Advantech PCI-1620A

8 Port RS-232 PCI Serial Card

Advantech PCI-1604C

2 Port RS-232 PCI Serial Card

Advantech MIC-3955

4 Port RS-232/422/485 3U Compactpci Serial Card

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

Moxa CA-132/132I

2 Port RS-422/485 PC/104 Module

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

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

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

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

Moxa CP-168EL-A

8 Port RS-232 PCI Express Serial Card

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

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

Moxa CP-132UL-I

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

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

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

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

Moxa CP-118EL-A

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

Moxa CP-114UL-I

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

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

Moxa CP-114EL-I

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

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

Moxa CP-112UL-I

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

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

4 Port RS-232 Low Profile Universal PCI Serial Card

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

Moxa CP-104EL-A

4 Port RS-232 Low Profile PCI Express Serial Card

2 Port RS-232 Low Profile Universal PCI Serial Card

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

2 Port RS-232 Mini PCI Express Serial Card

2 Port RS-232 Low Profile PCI Express Serial Card

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

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

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

Sealevel 7205ec

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

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

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

2 Port RS-422/485 PCI Serial Card

2 Port RS-232/422/485 Isolated PCI Express Asynchronous Serial Card

2 Port RS-232 PCI Serial Card

2 Port RS-232/422/485 PCI Serial Card

16 Port RS-232 PCI Express Asynchronous Serial Card

16 Port RS-232 PCI Serial Card

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

1 Port RS-232/422/485/530 Low Profile PCI Express Asynchronous Serial Card

Showing 60 of 110

Case Studies

LCDs with real-time power switching for HV substation installation

Our customer is a tier one system integrator in the substation automation market with many of the worlds TSOs and DSOs listed as their clients. They required a number of custom designed rack-mount LCDsfor use in their HV substation projects.

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