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Serial Converters/Repeaters/Isolators (310)

Reliable Serial Communication
Choose serial converters, repeaters and isolators by interface, port count, baud rate, isolation, connector type, DIN rail format, driver support and cable distance

DistriNode serial converters, repeaters and isolators help connect legacy devices, PLCs, meters, POS terminals, access control, CNC equipment, routers, servers and industrial controllers where RS-232, RS-422, RS-485, USB or Ethernet links must stay stable. Compare USB-to-serial adapters, multi-port converters, repeaters for longer cable runs, opto-isolated interfaces, surge protection, screw terminals, DB9 connectors, DIN rail housings, Windows and Linux drivers, Modbus use, half-duplex or full-duplex wiring and whether the link is for commissioning, permanent automation, service laptops or electrically noisy environments.

310 products66 brandsUSB -> RS-485Official distributor

How to Choose Serial Converters

Match the standard
RS-232, RS-422 and RS-485 use different wiring, distance and signalling rules.
Check isolation
Optical isolation protects equipment when ground loops or industrial noise are possible.
Plan drivers
Service laptops, servers and embedded systems may need specific chipset support.
Respect distance
Repeaters and proper termination help long RS-485 runs stay reliable.

What You Will Find Here

USB to Serial AdaptersRS-232 ConvertersRS-485 RepeatersSerial IsolatorsRS-422 AdaptersDIN Rail ConvertersDB9 Serial AdaptersModbus InterfacesMulti-Port Serial CardsIndustrial Serial Links

Leading Serial Interface Brands

DELOCKMOXAStarTechEXSYSROLINEATENDIGITUSMANHATTANLINDYINLINERENKFORCEEQUIPUNITEKACTLOGILINKMICROCONNECTWENTRONICAXAGON
Integration tip: Write down the serial standard, connector, baud rate and wiring mode before replacing a converter.

Frequently Asked Questions

Can RS-232 and RS-485 be connected directly?
No. They need a proper converter because signalling and wiring are different.
When is isolation needed?
Use isolation when devices are powered from different sources or the environment has electrical noise.
Why do some USB serial adapters fail with old devices?
Chipset drivers, voltage levels and handshake lines may not match the equipment.
Brand: INLINE Stock: 241
The InLine USB to RS232 Adapter (33304A) converts a USB port into an RS-232 serial interface, enabling connection of RS-232 devices to a computer via ..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R498
Ex Tax:R433
3 suppliers Reward +R1
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Brand: EQUIP Stock: 500
The equip® USB 2.0 Serial Adapter converts a computer's USB Type A port to a DB9 serial RS-232 interface, enabling connection of legacy serial devices..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R368
Ex Tax:R320
3 suppliers Reward +R1
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Brand: EQUIP Stock: 186
This 133387 USB 2.0 to RS-232 adapter provides a flexible DB9 connection with matching screws and nuts for the operation on serial controllers, print..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R825
Ex Tax:R717
5 suppliers Reward +R2
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Brand: INLINE Stock: 460
The InLine USB to Serial Adapter Cable InLine 33396 1.8m converts a computer USB port to an RS-232 serial interface, allowing connection of devices su..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R602
Ex Tax:R524
2 suppliers Reward +R1
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Brand: DELOCK Stock: 300
The DeLOCK USB Cable 1.8 m USB2.0-A/TTL 6-pin (MPN 83787) is a black data cable that provides a USB-A connection to a TTL 6-pin interface. Designed fo..
Interface Type USB Type-A Product Type TTL Serial Converter Number of Po... 1 Port Connector B Pin Header
R595
Ex Tax:R518
3 suppliers Reward +R2
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Brand: DELOCK Stock: 500
The DeLOCK 65840 is a 1.5 m USB Type-A to DB-9 serial cable that provides an RS-232 interface for connecting meters, POS systems, printers, modems, Io..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B Serial Port
R886
Ex Tax:R770
5 suppliers Reward +R2
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Brand: DELOCK Stock: 100
This USB 2.0 to serial adapter cable by DeLOCK (model 63465) provides a USB Type-A to DB-9 connection supporting RS-422 and RS-485 interfaces. With a ..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R742
Ex Tax:R645
2 suppliers Reward +R2
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Brand: DELOCK Stock: 95
DeLock USB2.0 to 8 x Serial Adapter - Serial Adapter - USB2.0 - RS-232 - 8 Ports (61860) — Genuine DELOCK product supplied by DistriNode.Available wit..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 8 Ports Connector B Serial Port
R2,229
Ex Tax:R1,938
4 suppliers Reward +R7
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Brand: DELOCK Stock: 10
This USB 2.0 to RS-232 adapter by DeLOCK connects a computer USB Type-A port to devices with an RS-232 console using an RJ-45 serial plug. The cable i..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B RJ45
R676
Ex Tax:R588
3 suppliers Reward +R2
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Brand: INLINE Stock: 340
The InLine USB 2.0 to Serial Adapter Cable (model 33306I) provides a USB Type-A male to DB-9 male connection in a compact 0.25 m black cable. It enabl..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R660
Ex Tax:R574
3 suppliers Reward +R2
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Brand: UGREEN Stock: 8
USB Serial Cable The USB to RS232 DB9 Serial Male Converter Adapter Cable is designed to connect serial devices such as DB9 equipped PCs, routers, GPS..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R476
Ex Tax:R414
1 supplier Reward +R1
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Brand: DIGITUS Stock: 1
DIGITUS USB 2.0 to RS232 adapter cable DA-70170 is a combined cable-and-adapter solution that connects USB Type-A ports to RS232 DB9 devices. The 1.8 ..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R420
Ex Tax:R365
7 suppliers Reward +R1
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Brand: DELOCK Stock: 100
The DeLOCK Adapter USB 2.0 Type-A to Serial RS-232 D-Sub 9 pin male is a cable adapter that allows a computer or host with a USB Type-A port to connec..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R501
Ex Tax:R435
4 suppliers Reward +R1
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Brand: EXSYS Stock: 4
Exsys EX-13078 is a USB 2.0 to serial adapter that provides eight RS-232 ports from a single USB connection. Designed for use where multiple serial in..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R3,530
Ex Tax:R3,069
2 suppliers Reward +R12
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Brand: EXSYS Stock: 11
Exsys EX-1309-T - Serial Adapter - USB - USB2.0 x 1 + RS-232/422/485 x 1 (EX-1309-T) — Genuine EXSYS product supplied by DistriNode.Available with liv..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R1,761
Ex Tax:R1,531
2 suppliers Reward +R6
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Brand: StarTech Stock: 2
Add four ports supporting three serial protocols, to easily connect serial devices to your computer through USB, with 15kV ESD protectionAdd four extr..
Interface Type USB Type-A Product Type Serial Protocol Converter Number of Po... 4 Ports Connector B DB9
R6,284
Ex Tax:R5,464
3 suppliers Reward +R23
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Brand: StarTech Stock: 34
Add RS-232 DCE serial communications support to a desktop or laptop computer and resolve DCE/DTE conflicts directly without the need for additional cr..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R1,000
Ex Tax:R870
6 suppliers Reward +R3
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Brand: StarTech Stock: 15
Add an RS-232 null modem serial port to a laptop or desktop, using an available USB-A portAdd RS-232 DCE serial communications support to a desktop or..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R1,035
Ex Tax:R900
5 suppliers Reward +R3
Add to Cart
Brand: TECHLY Stock: 10
The Techly IDATA-USB2-SER-1 is a 1.5 m black serial cable that converts between a standard USB Type-A plug and a DB-9 serial connector. Designed for c..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R710
Ex Tax:R617
2 suppliers Reward +R1
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Brand: UNITEK Stock: 3
Unitek Y-108301-1.5M is a USB 2.0 to RS422/RS485 adapter with an FTDI chipset and a fixed 1.5 m cable that converts USB signals to differential serial..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R431
Ex Tax:R374
2 suppliers Reward +R1
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Brand: StarTech Stock: 4
Add RS-232 DCE serial communications support to a desktop or laptop computer and resolve DCE/DTE conflicts directly without the need for additional cr..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R1,199
Ex Tax:R1,042
3 suppliers Reward +R4
Add to Cart
Brand: StarTech Stock: 10
Add two RS232 serial ports to a laptop or desktop, using an available USB-A portAdd RS-232 serial communication support to USB-A enabled Data Terminal..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 2 Ports Connector B DB9
R1,494
Ex Tax:R1,299
5 suppliers Reward +R4
Add to Cart
Brand: StarTech Stock: 5
Add two RS232 serial ports to a laptop or desktop, using an available USB-A portAdd RS-232 serial communication support to USB-A enabled Data Terminal..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 2 Ports Connector B DB9
R1,435
Ex Tax:R1,248
3 suppliers Reward +R4
Add to Cart
Brand: DELOCK Stock: 55
Legacy serial devices like RS-232, RS-485, and RS-422 equipment often lack network connectivity, making remote monitoring and integration into modern ..
Product Type Serial Protocol Converter Connector B RJ45 Primary Seri... RS-232 / RS-422 / RS-485 Isolation & ... Yes
R1,569
Ex Tax:R1,364
2 suppliers Reward +R5
Add to Cart
Brand: StarTech Stock: 4
Convert an RS-422 or RS-485 DB 9 male serial connector to a terminal block connectorThe DB92422 DB 9 to Terminal Block adapter converts an RS-422 or R..
Interface Type Serial Product Type Serial Protocol Converter Number of Po... 2 Ports Connector A DB9
R470
Ex Tax:R408
4 suppliers Reward +R1
Add to Cart
Brand: DELOCK Stock: 15
The DeLOCK Adapter USB Type-C to 4 x Serial RS-232 DB9 provides four RS-232 DB9 ports for connecting printers, measuring instruments, controllers, IoT..
Interface Type USB-C Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R2,383
Ex Tax:R2,072
2 suppliers Reward +R8
Add to Cart
Brand: ATEN Stock: 7
IC485S is a 2-way converter for converting RS-232 signals to and from RS-422/RS-485 signals in long-distance applications up to 1200 m (4000 ft.). It ..
Interface Type Serial Product Type Serial Protocol Converter Number of Po... 1 Port Connector A DB9
R1,155
Ex Tax:R1,005
2 suppliers Reward +R3
Add to Cart
Brand: SEH Stock: 3
SEH SU-302 Converter — Genuine SEH product supplied by DistriNode.Available with live stock, verified product data, official manufacturer warranty and..
Interface Type USB Type-B Product Type Serial Protocol Converter Number of Po... 1 Port Connector B Serial Port
R3,396
Ex Tax:R2,953
3 suppliers Reward +R12
Brand: ACT Stock: 616
The ACT USB to Serial Converter Basic version (AC6000) provides a simple way to connect RS‑232 serial devices to a computer via a USB Type‑A port. The..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R640
Ex Tax:R556
1 supplier Reward +R2
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Brand: TECLINE Stock: 39
The Hypertec 040331-HY is a USB-C to RS-232 serial cable designed to connect modern USB-C devices to equipment with a DB9 RS-232 port. The cable combi..
Interface Type USB-C Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R566
Ex Tax:R492
1 supplier Reward +R1
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Brand: SBOX Stock: 31
The Sbox USB-RS232/R adapter provides a reliable and straightforward solution for connecting legacy RS-232 serial devices to modern computers via a US..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R158
Ex Tax:R138
1 supplier Reward +R1
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Brand: DELOCK Stock: 14
The Delock 63003 Ethernet to RS-485/RS-422 converter enables seamless integration of serial devices into an Ethernet network. With surge protection an..
Product Type Serial Protocol Converter Connector B Terminal Block Primary Seri... RS-422 & 485
R4,398
Ex Tax:R3,825
2 suppliers Reward +R16
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Brand: IOGEAR Stock: 29
IOGEAR USB PDA/ Serial Adapter GUC232A - Serial Adapter — Genuine IOGEAR product supplied by DistriNode.Available with live stock, verified product da..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector A DB9
R789
Ex Tax:R686
2 suppliers Reward +R2
Add to Cart
Brand: ATEN Stock: 2
The ATEN UC232C USB to RS-232 converter is a compact adapter with a 0.45 m cable that connects RS-232 (DB-9) devices to USB-C ports on laptops and PCs..
Interface Type USB-C Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector A DB9
R498
Ex Tax:R433
4 suppliers Reward +R1
Add to Cart
Brand: LOGILINK Stock: 300
Logilink UA0042B The Logilink UA0042B is a genuine Logilink printer consumable. Using original supplies keeps print quality consistent and protects yo..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R430
Ex Tax:R374
3 suppliers Reward +R1
Brand: StarTech Stock: 35
Add an RS232 serial port to a notebook or desktop computer with this Plug-and Play USB adapter cableThe ICUSB232DB25 USB to RS232 DB9/DB25 Serial Adap..
Interface Type USB-C Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B DB-25
R630
Ex Tax:R548
6 suppliers Reward +R2
Add to Cart
Brand: StarTech Stock: 70
Add a Null Modem RS232 serial port to your laptop or desktop computer through USBThe ICUSB232FTN FTDI USB to Null Modem Serial Adapter Cable (1-Port) ..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B DB9
R1,003
Ex Tax:R872
7 suppliers Reward +R3
Add to Cart
Brand: ROLINE Stock: 87
ROLINE Cable-Converter USB A RS422/485 - Cable (12.02.1174) — Genuine ROLINE product supplied by DistriNode.Available with live stock, verified produc..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R1,198
Ex Tax:R1,042
3 suppliers Reward +R4
Add to Cart
Brand: VALUE Stock: 200
ROTRONIC-SECOMP VALUE - Serial Adapter - USB-C - RS-232 x 1 — Genuine VALUE product supplied by DistriNode.Available with live stock, verified product..
Interface Type USB-C Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector A DB9
R637
Ex Tax:R554
3 suppliers Reward +R2
Add to Cart
Brand: EXSYS Stock: 2
Exsys EX-2346IS is a USB 2.0 Type-C to Serial RS-422/485 cable that integrates an FTDI USB-to-serial chipset and internal surge protection. It allows ..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R2,583
Ex Tax:R2,246
2 suppliers Reward +R9
Add to Cart
Brand: ROLINE Stock: 33
ROLINE RS232 nach RS422/485 Converter for DIN DIN Rail, selfpowered (12.02.1008) — Genuine ROLINE product supplied by DistriNode.Available with live s..
Interface Type Serial Product Type Serial Protocol Converter Number of Po... 1 Port Connector A DB9
R1,695
Ex Tax:R1,474
3 suppliers Reward +R5
Add to Cart
Brand: ROLINE Stock: 300
ROLINE Serial Adapter - DB-25 (M) to RJ-45 (W) — Genuine ROLINE product supplied by DistriNode.Available with live stock, verified product data, offic..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB-25
R338
Ex Tax:R294
3 suppliers Reward +R1
Add to Cart
Brand: AVERMEDIA Stock: 11
The AVer Mini DIN6 to RS232 converter AVer 064AOTHERB66 is a compact adapter that converts a Mini DIN6 connection to a standard RS232 serial interface..
Interface Type Serial Product Type Serial Media Converter Number of Po... 1 Port Connector B DB9
R1,250
Ex Tax:R1,087
2 suppliers Reward +R4
Add to Cart
Brand: StarTech Stock: 8
Add an R422/485 serial port to your laptop or desktop computer through USBThe ICUSB422IS 1 Port Metal Industrial USB to RS422/RS485 Serial Adapter w/ ..
Interface Type USB Type-A Product Type Serial Isolator Number of Po... 1 Port Connector B Serial Port
R3,203
Ex Tax:R2,785
5 suppliers Reward +R11
Add to Cart
Brand: StarTech Stock: 5
Add an RS232 serial port to a laptop or desktop, using an available USB-A portAdd RS-232 serial communication support to USB-A enabled Data Terminal E..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R1,067
Ex Tax:R928
5 suppliers Reward +R3
Add to Cart
Brand: DELOCK Stock: 80
DeLOCK 83778 USB 2.0 Type-A to Serial TTL converter with 3.5 mm 4-pin jack, 1.8 m cable and 5 V TTL level. Suitable for GPIO, UART, controllers, FPGAs..
Interface Type USB Type-A Product Type TTL Serial Converter Number of Po... 1 Port Connector A 3.5 mm Audio
R612
Ex Tax:R532
2 suppliers Reward +R2
Add to Cart
Brand: RENKFORCE Stock: 368
The Renkforce RF-4222053 serial cable connects RS‑232 devices to a free USB Type‑A port on a PC or laptop, allowing older serial equipment such as PDA..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R557
Ex Tax:R485
1 supplier Reward +R1
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Brand: ACT Stock: 946
The ACT AC6002 USB-C to Serial Adapter lets you connect a serial device to the USB-C port of your computer. With a 1.5 m integrated cable and a USB Ty..
Interface Type USB-C Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R789
Ex Tax:R686
1 supplier Reward +R2
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Brand: StarTech Stock: 5
Add four RS232 serial ports to any notebook or desktop computer using a single USB portThis 4 Port USB to RS232 Serial Hub lets you connect up to four..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 4 Ports Connector B DB9
R2,726
Ex Tax:R2,371
4 suppliers Reward +R9
Add to Cart
Brand: StarTech Stock: 11
Add one serial RS-232 port with com retention to any laptop or computer with a USB portThe ICUSB2321X Professional grade USB Serial Adapter cable conv..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector A DB9
R1,219
Ex Tax:R1,060
6 suppliers Reward +R4
Add to Cart
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