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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: REALPOWER Stock: 14
RealPower 284513. Input voltage: 9 - 35 V, Operating voltage: 5 VKey Features19" 1U Rack Mount kompatibelUSB Port zu 8 x RS232FTDI ChipsatzRS232 Multi..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 8 Ports Connector B Serial Port
R7,293
Ex Tax:R6,342
4 suppliers Reward +R15
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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: 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
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Brand: JOY-IT Stock: 156
DEBO TTL-RS485 - Entwicklerboard - UART-TTL to RS485 Converter (TTL-RS485-Converter) — Genuine JOY-IT product supplied by DistriNode.Available with li..
Interface Type Serial Product Type Serial Protocol Converter Number of Po... 1 Port Connector B Serial Port
R326
Ex Tax:R283
1 supplier Reward +R1
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Brand: RENKFORCE Stock: 544
Renkforce RF-4543257 is a serial adapter cable that converts a 9-pin SUB-D (DE-9) male connector to a 25-pin SUB-D (DB-25) female connector. The cable..
Interface Type Serial Product Type Serial Media Converter Number of Po... 1 Port Connector B DB-25
R396
Ex Tax:R344
1 supplier Reward +R1
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Brand: StarTech Stock: 1
Extend an RS232 serial connection up to 1000 meters (3300 feet) using Cat 5 cablingThe RS232EXTC1EU Serial over Cat 5 Extender allows you to increase ..
Interface Type Serial Product Type Serial & Parallel Interface Card Number of Po... 17+ Ports Connector B RJ45
R2,835
Ex Tax:R2,465
5 suppliers Reward +R9
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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
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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
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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: 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
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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
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Brand: MOXA Stock: 3
Moxa UPort 1130 - Serial Adapter - USB - RS-422/485 (Uport-1130) — Genuine MOXA product supplied by DistriNode.Available with live stock, verified pro..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R2,510
Ex Tax:R2,183
1 supplier Reward +R8
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Brand: LINDY Stock: 5
The Lindy USB to Serial Converter with COM retention allows easy connection of peripheral devices featuring 9 Way Serial RS232 to a USB Type A port. W..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R684
Ex Tax:R595
1 supplier Reward +R2
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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: StarTech Stock: 100
Add an RS-232 serial port to your laptop or desktop computer through USB; features COM port retentionThe ICUSB232PRO 1 ft USB to RS232 Serial DB9 Adap..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R843
Ex Tax:R733
6 suppliers Reward +R2
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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
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Brand: MANHATTAN Stock: 15
The Manhattan USB-A to Serial Converter Cable (45 cm) provides a USB-A to RS232 (DB9) connection using a Prolific PL-2303RA chipset. Designed to conne..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R421
Ex Tax:R366
4 suppliers Reward +R1
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Brand: LINDY Stock: 10
The Lindy USB to 4 Port Serial Converter (model 42858) connects up to four RS232 9‑way serial devices to a single USB Type A port. Its compact, bus‑po..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 4 Ports Connector B Serial Port
R2,106
Ex Tax:R1,832
3 suppliers Reward +R7
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Brand: DELOCK Stock: 6
The DeLOCK Adapter USB 2.0 Type-A to Serial RS-232 D-Sub 9 pin male (0.25 m) allows connection of serial RS-232 devices to a host USB Type-A port. The..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R345
Ex Tax:R300
4 suppliers Reward +R1
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Brand: MOXA Stock: 31
Moxa UPort 1110 - Serial Adapter - USB - RS-232 (UPort 1110) — Genuine MOXA product supplied by DistriNode.Available with live stock, verified product..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector A DB9
R1,518
Ex Tax:R1,320
1 supplier Reward +R5
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Brand: TRENDNET Stock: 5
The Trendnet TU-S9 Serial Cable is a USB-to-serial adapter with a blue USB Type-A connector on one end and a DB-9 (RS-232) connector on the other. It ..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R413
Ex Tax:R359
5 suppliers Reward +R1
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Brand: LOGILINK Stock: 9
The LogiLink AU0002F RS-232 USB 2.0 Adapter is a compact converter that allows RS-232 (COM port) devices to connect to a USB 2.0 Type-A port. The adap..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R311
Ex Tax:R270
5 suppliers Reward +R1
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Brand: StarTech Stock: 17
The StarTech ICUSB232SM3 3 ft (0.9 m) USB to RS232 DB9 serial adapter cable connects computers with an available USB port to DB9 RS232 serial devices...
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B DB9
R879
Ex Tax:R764
5 suppliers Reward +R2
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Brand: StarTech Stock: 141
Add an RS232 serial port to your laptop or desktop computer through USBThe ICUSB232V2 1 Port USB to Serial Adapter converts a USB port into an RS232 D..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B DB9
R660
Ex Tax:R574
6 suppliers Reward +R2
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Brand: StarTech Stock: 10
Add an RS422/485 serial port to your system through USB; features COM port retentionThe ICUSB422 6ft Professional RS422/485 USB Serial Cable Adapter w..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector A DB9
R1,760
Ex Tax:R1,530
5 suppliers Reward +R5
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Brand: DELOCK Stock: 5
The DeLOCK USB to Serial Adapter 61460 converts a USB 2.0 port to a DB9 serial interface, enabling connection of legacy serial devices to modern compu..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R487
Ex Tax:R424
8 suppliers Reward +R1
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Brand: DELOCK Stock: 100
This USB 2.0 Type-A to serial adapter by Delock provides a single RS-232 port for connecting legacy and industrial devices. The cable is 1.8 m long, h..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R483
Ex Tax:R420
4 suppliers Reward +R1
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Brand: DELOCK Stock: 100
The DeLOCK Adapter Cable USB 2.0 Type-A to Serial RS-485 is a 2 m black cable that enables data transmission between USB 2.0 hosts and devices with RS..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Open Wires
R677
Ex Tax:R589
4 suppliers Reward +R2
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Brand: INLINE Stock: 175
The InLine USB-C to Serial Adapter Cable (model 33308L) is a 1.8 m cable with a USB-C male connector on one end and a DB9 (RS-232) male connector on t..
Interface Type USB-C Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R583
Ex Tax:R507
4 suppliers Reward +R1
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Brand: StarTech Stock: 195
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
R1,126
Ex Tax:R979
6 suppliers Reward +R3
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Brand: StarTech Stock: 14
USB to Serial Cable | COM Retention | For Servers/Printers/Barcode Readers/AV | Prolific Chipset |Windows/Mac/LinuxThe 1P3FPC-USB-SERIAL 1 Port USB to..
Interface Type USB-C Product Type Serial Media Converter Number of Po... 1 Port Connector B DB9
R954
Ex Tax:R830
6 suppliers Reward +R3
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Brand: DELOCK Stock: 200
The DeLOCK 63914 is a 3-meter serial cable with a USB Type-C connector on one end and an RJ45 serial console plug on the other. Designed for connectin..
Interface Type USB-C Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B RJ45
R861
Ex Tax:R749
5 suppliers Reward +R2
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Brand: DELOCK Stock: 500
This USB Type-C™ to serial adapter by Delock provides a compatible RS-232 DB9 interface for printers, measuring instruments, controllers, IoT devices ..
Interface Type USB-C Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R579
Ex Tax:R504
5 suppliers Reward +R1
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Brand: DIGITUS Stock: 1
The RS-232 to RS-485 Adapter Digitus DA-70161 converts RS-232 signals into RS-485 and enables communication between computers and serial devices that ..
Interface Type Serial Product Type Serial Protocol Converter Number of Po... 1 Port Connector A DB9
R299
Ex Tax:R260
6 suppliers Reward +R1
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Brand: DELOCK Stock: 500
This adapter by DeLOCK enables the connection of a serial device via a USB Type-A port. The adapter converts USB 2.0 to a RS-232 D-Sub 9 pin male conn..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R674
Ex Tax:R586
3 suppliers Reward +R2
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Brand: INLINE Stock: 255
The InLine USB 2.0 to 2x Serial Adapter Cable (33305M) adds two RS232 serial ports to a computer via a single USB connection. The cable is 1.5 m long ..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 2 Ports Connector A DB9
R633
Ex Tax:R551
4 suppliers Reward +R2
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Brand: ROLINE Stock: 26
ROLINE USB 2.0 to RS422/485 Adapter ROLINE 12.02.1004 converts a USB port into an isolated RS422/RS485 serial interface for reliable connection of ser..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R3,076
Ex Tax:R2,675
3 suppliers Reward +R11
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Brand: CRADLEPOINT Stock: 500
This CradlePoint serial-to-USB cable provides a 40 cm connection between a screw-mount USB Type A (male) and a screw-mount RS-232 D‑sub (female) conne..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R1,816
Ex Tax:R1,579
3 suppliers Reward +R6
Add to Cart
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
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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
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Brand: LINDY Stock: 5
The Lindy USB to Serial RS485 Converter Lindy 42845 provides a straightforward way to connect RS485 9-way serial devices to a computer USB Type A port..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R1,043
Ex Tax:R907
3 suppliers Reward +R3
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Brand: EXSYS Stock: 935
The Serial USB to RS-232 Cable Exsys EX-13001 is a 1.8 m cable designed to convert a USB port to a standard RS-232 serial interface using an FTDI chip..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B Serial Port
R892
Ex Tax:R775
1 supplier Reward +R2
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Brand: DELOCK Stock: 100
The DeLOCK USB 2.0 to Serial Adapter (model 61425) provides a simple way to connect RS-232 serial devices to a computer via a USB Type-A port. The ada..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B DB9
R498
Ex Tax:R433
5 suppliers Reward +R1
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: 300
The DeLOCK 64073 is a transparent 2 m serial cable that converts a USB Type-A connection to a DB-9 (RS-232) port. It enables connection of meters, POS..
Interface Type USB Type-A Product Type Multi-Port USB Serial Hub Number of Po... 1 Port Connector B DB9
R716
Ex Tax:R622
4 suppliers Reward +R2
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Brand: DELOCK Stock: 500
The DeLOCK USB 2.0 to serial RS-232 adapter with a 50 cm cable provides a compact and reliable interface to connect RS-232 devices to a computer via a..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R561
Ex Tax:R488
4 suppliers Reward +R1
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Brand: DELOCK Stock: 500
The DeLOCK USB 2.0 to serial RS-232 adapter with a 50 cm cable and USB Type-A connector converts a computer USB port into a single RS-232 serial inter..
Interface Type USB Type-A Product Type USB-to-Serial Adapter Number of Po... 1 Port Connector B Serial Port
R561
Ex Tax:R488
4 suppliers Reward +R1
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Brand: DELOCK Stock: 200
DeLOCK 83115 USB 2.0 Type-A to Serial TTL converter with 3.5 mm 3-pin stereo jack, 1.8 m cable and 5 V TTL level for industrial and embedded serial ap..
Interface Type USB Type-A Product Type TTL Serial Converter Number of Po... 1 Port Connector A 3.5 mm Audio
R606
Ex Tax:R527
4 suppliers Reward +R2
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Brand: INLINE Stock: 10
The InLine USB to Sub-D 9 Pin Serial Adapter Cable Premium (MPN 33304D) is a 0.2 m cable with a USB Type-A connector that converts a USB port to a DB‑..
Interface Type USB Type-A Product Type USB-to-Serial Converter Cable Number of Po... 1 Port Connector B DB9
R382
Ex Tax:R332
5 suppliers Reward +R1
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