Industrial USB to Serial Converters for Reliable Integration

Easily convert USB to RS-232, RS-422, or RS-485 with our range of industrial USB to serial converters. From compact, one-port models to larger, rack-mounted multiport units, we offer solutions for all your serial communication needs, ensuring smooth integration into your existing systems.

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Showing 60 of 60 USB-to-Serial Converters items

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1 option available

Moxa UPort 2410 Series

4 Port RS-232 (DB9) Serial to USB2.0 Adapter

From £187.00 (exc. VAT)

1 option available

Moxa UPort 2210 Series

2 Port RS-232 (DB9) Serial to USB2.0 Adapter

From £142.50 (exc. VAT)

4 options available

Moxa UPort 1250-G2 Series

2 Port RS-232/422/485 DB9 Serial to USB3.2 Converter, 0°C to +60°C

From £142.00 (exc. VAT)

2 options available

Moxa UPort 1250 Series

2 Port RS-232/422/485 DB9 Serial to USB2.0 Converter

2 options available

Moxa UPort 1130 Series

1 Port RS-422/485 DB9 Serial to USB2.0 Converter

From £66.50 (exc. VAT)

1 option available

Moxa UPort 1110 Series

1 Port RS-232 DB9 Serial to USB2.0 Converter

From £37.00 (exc. VAT)

2 options available

Moxa UPort 1150 Series

1 Port RS-232/422/485 DB9 Serial to USB2.0 Converter

From £98.50 (exc. VAT)

5 options available

Moxa UPort 1650-8-G2 Series

8 Port RS-232/422/485 DB9 Serial to USB3.2 Converter

From £476.50 (exc. VAT)

1 option available

Moxa UPort 1610-8-G2 Series

8 Port RS-232/422/485 DB9 Isolated Serial to USB3.2 Converter

From £317.50 (exc. VAT)

3 options available

Moxa UPort 1450-G2 Series

4 Port RS-232/422/485 DB9 Serial to USB3.2 Converter

From £341.00 (exc. VAT)

Moxa UPort 1650-16 Series

16 Port RS-232/422/485 DB9 Serial to USB2.0 Converter

Moxa UPort 1610-16 Series

16 Port RS-232 DB9 Serial to USB2.0 Converter

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1 option available

Moxa UPort 1410-G2 Series

4 Port RS-232 DB9 Serial to USB3.2 Converter

From £223.50 (exc. VAT)

1 option available

Advantech ADAM-4562 Series

Isolated USB to 1 Port RS-232 (DB9) Serial Adapter

From £83.00 (exc. VAT)

1 option available

Advantech ADAM-4561 Series

Isolated USB to 1 Port RS-232/422/485 Serial Converter

From £117.50 (exc. VAT)

Advantech BB-USOPTL4DR-2

ULI-342TC - 2 Port Isolated RS-422/485 DIN-Rail Industrial USB2.0 Converter

1 option available

Sealevel 687U Series

8 Port RS-232/485 (RJ45) Versacom Serial to USB Adapter

From £530.00 (exc. VAT)

1 option available

Sealevel 681U Series

8 Port RS-232 (RJ45) Serial to USB Adapter

From £513.00 (exc. VAT)

1 option available

Sealevel 647U Series

4 Port RS-232/485 (RJ45) Versacom Serial to USB Adapter

From £378.00 (exc. VAT)

1 option available

Sealevel 641U Series

4 Port RS-232 (RJ45) Serial to USB Adapter

1 option available

Sealevel 2833 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

1 option available

Sealevel 2823 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £521.00 (exc. VAT)

4 options available

Sealevel 2807 Series

8 Port RS-232/485 RJ45 Versacom Serial to USB Adapter

From £435.50 (exc. VAT)

4 options available

Sealevel 2804 Series

8 Port RS-232 RJ45 Serial to USB Adapter

From £466.00 (exc. VAT)

1 option available

Sealevel 2803 Series

8 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £524.00 (exc. VAT)

2 options available

Sealevel 2802 Series

8 Port RS-422/485 DB9 Serial to USB Adapter

From £503.50 (exc. VAT)

1 option available

Sealevel 2801 Series

8 Port RS-232 (DB9) Serial to USB Adapter

From £357.50 (exc. VAT)

1 option available

Sealevel 2433 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

1 option available

Sealevel 2423 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

4 options available

Sealevel 2407 Series

4 Port RS-232/485 RJ45 Versacom Serial to USB Adapter

From £335.50 (exc. VAT)

4 options available

Sealevel 2404 Series

4 Port RS-232 RJ45 Serial to USB Adapter

From £321.00 (exc. VAT)

1 option available

Sealevel 2403 Series

4 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £387.00 (exc. VAT)

1 option available

Sealevel 2402 Series

4 Port RS-422/485 (DB9) Serial to USB Adapter

From £196.50 (exc. VAT)

1 option available

Sealevel 2401 Series

4 Port RS-232 (DB9) Serial to USB Adapter

From £184.00 (exc. VAT)

1 option available

Sealevel 2228 Series

2 Port RS-232/422/485 (DB9) Software Configurable Serial to USB Adapter Board – PC Bracket

From £173.00 (exc. VAT)

1 option available

Sealevel 2223-OEM Series

2 Port RS-232/422/485 (DB9) OEM Serial to USB Board

From £185.00 (exc. VAT)

2 options available

Sealevel 2223 Series

2 Port RS-232/422/485 DB9 Serial to USB Adapter

From £184.00 (exc. VAT)

1 option available

Sealevel 2213 Series

2 Port Isolated RS-232/422/485 (DB9) Serial to USB Adapter

From £297.00 (exc. VAT)

1 option available

Sealevel 2208 Series

2 Port RS-232 (DB9) Serial to USB Adapter Board – PC Bracket

From £140.50 (exc. VAT)

1 option available

Sealevel 2203 Series

2 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £230.00 (exc. VAT)

2 options available

Sealevel 2202 Series

2 Port RS-422/485 DB9 Serial to USB Adapter

From £230.00 (exc. VAT)

1 option available

Sealevel 2201 Series

2 Port RS-232 (DB9) Serial to USB Adapter

From £149.50 (exc. VAT)

1 option available

Sealevel 2161 Series

16 Port RS-232 (RJ45) Serial to USB Adapter

1 option available

Sealevel 2128 Series

1 Port RS-232/422/485 (DB9) Software Configurable Serial to USB Adapter Board – PC Bracket

From £168.00 (exc. VAT)

1 option available

Sealevel 2123 Series

1 Port RS-232/422/485 (DB9) Serial to USB Adapter

From £169.00 (exc. VAT)

1 option available

Sealevel 2113 Series

1 Port Isolated RS-232/422/485 (DB9) Serial to USB Adapter

From £179.00 (exc. VAT)

1 option available

Sealevel 2108 Series

1 Port RS-232 (DB9) Serial to USB Adapter Board – PC Bracket

From £76.50 (exc. VAT)

1 option available

Sealevel 2107 Series

1 Port RS-485 (DB9) Serial to USB Adapter

From £93.00 (exc. VAT)

1 option available

Sealevel 2106 Series

1 Port RS-422 (DB9) Serial to USB Adapter

From £72.50 (exc. VAT)

1 option available

Sealevel 2105R Series

1 Port RS-232 (DB9) Serial to USB Adapter

From £90.00 (exc. VAT)

1 option available

Sealevel 2104 Series

1 Port Isolated RS-232/422/485 (DB25) Serial to USB Adapter

From £125.50 (exc. VAT)

1 option available

Sealevel 2103 Series

1 Port Isolated RS-232 (DB25) Serial to USB Adapter

From £114.00 (exc. VAT)

1 option available

Sealevel 2102 Series

1 Port RS-422/485/530 (DB25) Serial to USB Adapter

From £159.00 (exc. VAT)

1 option available

Sealevel 2101 Series

1 Port RS-232 (DB25) Serial to USB Adapter

Advantech BB-USO9ML2-A

ULI-321DC - 1 Port Isolated RS-232 Industrial USB2.0 Converter

£147.50 (exc. VAT)

Advantech BB-USOPTL4

ULI-341TC - 1 Port Isolated RS-422/485 Industrial USB2.0 Converter

£131.00 (exc. VAT)

1 option available

Advantech USB-4604BM Series

4 Port RS-232/422/485 (DB9) Serial to USB Converter

From £248.00 (exc. VAT)

1 option available

Advantech USB-4604B Series

4 Port RS-232 (DB9) Serial to USB Converter

From £176.50 (exc. VAT)

1 option available

Advantech ADAM-6700E Series

Industrial USB to Mini PCIe Adapter Module

From £95.00 (exc. VAT)

1 option available

Advantech BB-USOPTL4-4P Series

ULI-344TC - 4 Port Isolated RS-422/485 Industrial USB2.0 Converter

From £285.50 (exc. VAT)

Learn More About USB to Serial Converters

What Problem Do Converters Solve?

USB to serial converters allow modern PCs and embedded systems that only offer USB ports to communicate with legacy RS-232, RS-422 or RS-485 equipment. This enables existing controllers, instruments and machines to remain in service while still integrating with newer systems. By bridging old and new interfaces, converters help reduce upgrade costs and avoid unnecessary equipment replacement.

Who Uses USB to Serial Converters?

USB to serial converters are widely used by engineers working in automation, utilities, transport and industrial maintenance. They are commonly deployed for commissioning, diagnostics and ongoing system support, providing a straightforward and portable way to connect laptops or industrial PCs to long-serving serial devices such as PLCs, meters and control panels.

Why Select Industrial-Grade Models?

Industrial USB to serial converters are designed for reliable operation in demanding environments. Compared to consumer adaptors, they typically offer enhanced electrical isolation, secure DIN-rail or panel mounting options and extended operating temperature ranges. These features make them well suited to UK industrial projects where long-term availability, system stability and durability matters.

Explore Our Solutions

Railway Networking Solutions

Built for railway environments, our EN 50155 & EN 50121-4 certified networking solutions ensure reliable communication onboard rolling stock and wayside systems.

Marine Certified Networking Solutions

Designed to operate in high humidity, salt-spray and vibration-prone marine conditions, our DNV/IEC 60945-approved networking hardware delivers dependable connectivity at sea.

Cyber Secure Networking Solutions

Our IEC 62443-compliant networking solutions help protect your OT infrastructure from unauthorised access, data breaches and operational disruption.

Network Management Software

Gain full visibility and control of your network with a centralised platform for monitoring, configuration and diagnostics across large scale industrial deployments.

Industrial USB to Serial Converters for Reliable Integration

Learn More About USB to Serial Converters

Explore Our Solutions

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