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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 £181.50 (exc. VAT)

1 option available

Moxa UPort 2210 Series

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

From £138.50 (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 £138.00 (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 £64.50 (exc. VAT)

1 option available

Moxa UPort 1110 Series

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

From £40.50 (exc. VAT)

2 options available

Moxa UPort 1150 Series

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

From £96.00 (exc. VAT)

5 options available

Moxa UPort 1650-8-G2 Series

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

From £463.50 (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 £308.50 (exc. VAT)

3 options available

Moxa UPort 1450-G2 Series

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

From £331.50 (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 £217.50 (exc. VAT)

1 option available

Advantech ADAM-4562 Series

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

From £84.50 (exc. VAT)

1 option available

Advantech ADAM-4561 Series

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

From £119.50 (exc. VAT)

1 option available

Advantech USB-4604BM Series

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

From £252.50 (exc. VAT)

1 option available

Advantech USB-4604B Series

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

From £179.50 (exc. VAT)

Advantech BB-USOPTL4DR-2

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

1 option available

Advantech BB-USOPTL4-4P Series

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

From £291.00 (exc. VAT)

Advantech BB-USOPTL4

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

£133.50 (exc. VAT)

Advantech BB-USO9ML2-A

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

£150.00 (exc. VAT)

1 option available

Advantech ADAM-6700E Series

Industrial USB to Mini PCIe Adapter Module

From £97.00 (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 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 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

What Problem Do Converters Solve?
They bridge modern USB-only PCs with older RS-232, RS-422 or RS-485 equipment. This avoids replacing legacy devices while still enabling them to connect to new systems.

Who Uses USB to Serial Converters?
Engineers in automation, utilities and transport rely on them to maintain communication with long-serving controllers and meters. They provide a simple, portable link between old and new.

Why Select Industrial-Grade Models?
Compared to consumer adaptors, industrial converters include stronger isolation, DIN-rail mounts and extended temperature ratings. This makes them dependable in demanding UK projects where longevity matters.