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.
323 products59 brandsUSB -> RS-485Through official distributors
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
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: UNITEK
Stock: 17
The Unitek Y-1105K is a 1.5 m black adapter cable that connects a USB-C port to an RS-232 serial device through a DB-9 connector. It adds a serial por..
Interface Type
USB-C
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Primary Seri...
RS-232
R345
Ex Tax:R300
Brand: DELOCK
Stock: 200
The Delock USB TTL cable (USB2.0-A to TTL 6-pin) with a length of 1.8 m provides a reliable connection for data transfer between a host USB port and T..
Interface Type
USB Type-A
Product Type
TTL Serial Converter
Number of Po...
1 Port
Connector B
Serial Port
R677
Ex Tax:R588
60 mo.free
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
R2,619
Ex Tax:R2,277
60 mo.free
Brand: StarTech
Stock: 8
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
R1,149
Ex Tax:R999
Brand: StarTech
Stock: 2
Add an RS232 serial port to any system with an available USB motherboard headerThe ICUSB232INT1 USB to RS232 Serial Adapter lets you add an RS232 port..
Interface Type
Internal USB Header
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector A
DB9
R391
Ex Tax:R340
Brand: StarTech
Stock: 3
Add RS232, RS422 and RS485 support to your laptop or desktop computer via USBThe ICUSB2324852 2 Port USB to RS232 RS422 RS485 Serial Adapter with COM ..
Interface Type
USB Type-A
Product Type
Serial Protocol Converter
Number of Po...
2 Ports
Connector B
Serial Port
R2,467
Ex Tax:R2,145
Brand: DELOCK
Stock: 200
This USB 2.0 Type-A to serial RS-232 adapter cable by DeLOCK provides a simple connection between a USB 2.0 host and a device with an RS-232 interface..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R653
Ex Tax:R568
Brand: StarTech
Stock: 2
Convert a USB port into 16 RS232 serial ports in an industrial rack-mountable chassis - and daisy chain multiple hubs for a scalable solutionHere's an..
Interface Type
USB Type-A
Product Type
Multi-Port USB Serial Hub
Number of Po...
16 Ports
Connector B
Serial Port
R11,118
Ex Tax:R9,668
Brand: DELOCK
Stock: 200
The DeLOCK USB 2.0 to Serial UART LVTTL Converter provides a USB Type-A connection to six open-wire LVTTL serial lines with a 3.3V output voltage and ..
Interface Type
USB Type-A
Product Type
TTL Serial Converter
Number of Po...
1 Port
Connector B
Serial Port
R677
Ex Tax:R588
Brand: DELOCK
Stock: 200
The DeLOCK USB Cable 1.8 m USB2.0-A/TTL 6-pin is a USB to TTL converter cable designed for reliable serial communication between a host computer and T..
Interface Type
USB Type-A
Product Type
TTL Serial Converter
Number of Po...
1 Port
Connector B
Serial Port
R686
Ex Tax:R596
Brand: DELOCK
Stock: 100
This USB Type-C 2.0 to serial adapter from Delock provides standard RS-422 and RS-485 interfaces via a 6-pin male terminal block and a 0.5 m cable. Th..
Interface Type
USB-C
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Terminal Block
R568
Ex Tax:R494
Brand: DELOCK
Stock: 100
The DeLOCK Adapter USB Type-C to 1 x Serial RS-232 DB9 (model 64038) provides a compact solution to connect serial RS-232 devices to a USB Type-C port..
Interface Type
USB-C
Product Type
Multi-Port USB Serial Hub
Number of Po...
1 Port
Connector B
DB9
R876
Ex Tax:R761
Brand: DELOCK
Stock: 100
The DeLOCK USB Type-C to Serial DB9 Adapter 90414 is a compact cable that connects devices with an RS-232 DB9 interface to a USB Type-C port. The adap..
Interface Type
USB-C
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R1,286
Ex Tax:R1,118
Brand: DELOCK
Stock: 200
The DeLOCK Adapter USB Type-C to RS-232 D-Sub 9 pin male with 2 m cable provides a reliable serial connection for devices with an RS-232 DB9 interface..
Interface Type
USB-C
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R571
Ex Tax:R496
Brand: DELOCK
Stock: 100
The DeLOCK Adapter USB 2.0 Type-A to RS-232 D-Sub 9 pin male with a 0.8 m cable converts a computer USB Type-A port into a serial RS-232 interface. It..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R606
Ex Tax:R527
Brand: DELOCK
Stock: 500
The DeLOCK 61549 is a 0.25 m serial cable with a USB Type-A connector on one end and an RS-232 connector on the other, designed to connect serial devi..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R565
Ex Tax:R491
Brand: DELOCK
Stock: 500
The DELOCK USB RS-232 adapter converts a USB 2.0 Type-A port into a D-Sub 9 male RS-232 serial connector, providing a compact solution for connecting ..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R563
Ex Tax:R489
Brand: DELOCK
Stock: 100
This USB Type-A to serial cable by DeLOCK connects devices via a DB-9 (RS-232) interface and is 1.5 m long. The DeLOCK 63466 features a USB Type-A plu..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
2 Ports
Connector B
DB9
R882
Ex Tax:R767
Brand: DELOCK
Stock: 47
The DeLOCK 63950 serial cable features a USB 2.0 Type-A connector and two RS-232 DB9 interfaces, designed to connect printers, measuring instruments, ..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
2 Ports
Connector B
Serial Port
R868
Ex Tax:R755
Brand: DELOCK
Stock: 99
The DeLOCK 66286 serial cable connects a USB 2.0 Type-A port to a DB‑9 (RS‑232/serial) interface, offering a compact 0.8 m black cable for reliable da..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R636
Ex Tax:R553
Brand: DELOCK
Stock: 300
The DeLOCK USB 2.0 Type-A to 1 x serial RS-232 DB9 adapter (4 m) provides a reliable serial interface for connecting legacy and industrial equipment t..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R778
Ex Tax:R676
Brand: DELOCK
Stock: 43
The DeLOCK 64315 is an RS-232 serial converter, repeater and isolator designed to protect connected devices such as computers, machines, controllers a..
Interface Type
Serial
Product Type
Serial Isolator
Number of Po...
1 Port
Connector B
DB9
R813
Ex Tax:R707
Brand: DELOCK
Stock: 200
The DeLOCK 63968 is an RS-232 serial converter, repeater and isolator that provides galvanic isolation between two DB9 devices. Housed in a plastic en..
Interface Type
Serial
Product Type
Serial Isolator
Number of Po...
1 Port
Connector B
DB9
R813
Ex Tax:R707
Brand: DELOCK
Stock: 300
DeLOCK 87687 is a converter that connects a serial RS-232 DB9 female port to a serial TTL/CMOS 5 V DB9 male port. It includes ESD protection and suppo..
Connector B
DB9
Connector A
DB9
R541
Ex Tax:R470
Brand: DELOCK
Stock: 300
The DeLOCK 87586 serial converter repeater isolator is a compact USB 2.0 to serial adapter that allows connection of up to two serial devices to a sin..
Interface Type
USB Type-A
Product Type
Multi-Port USB Serial Hub
Number of Po...
2 Ports
Connector B
Serial Port
R1,736
Ex Tax:R1,509
Brand: DELOCK
Stock: 1
The DeLOCK 62406 is a 0.82 m serial cable with a USB Type-A connector on one end and a DB-9 serial connector on the other. It provides a simple soluti..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R599
Ex Tax:R520
Brand: JOY-IT
Stock: 218
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
R330
Ex Tax:R287
Brand: ATEN
Stock: 21
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
R506
Ex Tax:R440
Brand: RENKFORCE
Stock: 979
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
R403
Ex Tax:R350
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
R499
Ex Tax:R434
Brand: DELOCK
Stock: 500
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
R727
Ex Tax:R632
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
R563
Ex Tax:R489
Brand: DELOCK
Stock: 300
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
R563
Ex Tax:R489
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
R615
Ex Tax:R535
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
R384
Ex Tax:R334
36 mo.free
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
R794
Ex Tax:R690
Brand: DELOCK
Stock: 1
The Delock 90892 is a USB to RS-232 converter that connects devices via USB 2.0 and RS-232 interfaces. It features a 4-pin USB Type-A male connector a..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R770
Ex Tax:R670
Brand: INLINE
Stock: 321
The InLine 33304 USB to Serial Adapter Cable converts a USB Type-A port to a DB-9 (RS-232) serial connection. At approximately 0.2 m long, the cable f..
Interface Type
USB Type-A
Product Type
USB-to-Serial Converter Cable
Number of Po...
1 Port
Connector B
DB9
R451
Ex Tax:R392
Brand: DELOCK
Stock: 100
DeLock - Serial Adapter - USB-C - RS-232 x 1 - Black (63912) — Genuine DELOCK product supplied by DistriNode.Available with live stock, verified produ..
Interface Type
USB-C
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R876
Ex Tax:R762
Brand: LINDY
Stock: 55
The Lindy USB to Serial Converter Lite allows the user to easily connect peripheral devices featuring 9 Way Serial RS232 to a USB Type A port.With bot..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R338
Ex Tax:R294
60 mo.free
Brand: StarTech
Stock: 20
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
R1,228
Ex Tax:R1,068
60 mo.free
Brand: StarTech
Stock: 7
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
R1,502
Ex Tax:R1,306
60 mo.free
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
R922
Ex Tax:R802
Brand: DELOCK
Stock: 79
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
R626
Ex Tax:R544
Brand: RENKFORCE
Stock: 344
The Renkforce 29039C176 is a USB 1.1 serial adapter. It connects a USB-A male plug to a D-SUB 9-pin male and a D-SUB 25-pin male connector and has gol..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R578
Ex Tax:R502
![Joy-it Converter (USB/RS485) Raspberry Pi, Arduino [1x USB 2.0 Plug A - 1x 2-Wire-cable] 0 m Black (SBC-ttl-rs485)](https://distrinode.co.za/image/cache/DN/30/30b795ca163cf9ef6d60bb6d783143b1_joy-it-wandler-usbrs485-raspberry-pi-arduino-1x-usb-20-stecker-a-1x-2-draht-leitung-0-m-schwarz-sbc-ttl-rs485-4048455-2715033-350x350w.webp "Joy-it Converter (USB/RS485) Raspberry Pi, Arduino [1x USB 2.0 Plug A - 1x 2-Wire-cable] 0 m Black (SBC-ttl-rs485)")
Brand: JOY-IT
Stock: 477
Joy-it Converter (USB/RS485) Raspberry Pi, Arduino [1x USB 2.0 Plug A - 1x 2-Wire-cable] 0 m Black (SBC-ttl-rs485) — Genuine JOY-IT product supplied b..
Interface Type
USB Type-A
Product Type
Serial Protocol Converter
Number of Po...
1 Port
Connector B
Serial Port
R372
Ex Tax:R323
Brand: WENTRONIC
Stock: 10
Wentronic Goobay USB Serial RS232 Converter, 1.5 m - USB 2.0-Plug (Type A) > D-SUB/RS-232-Plug (9-pin) (68875) — Genuine WENTRONIC product supplied by..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R548
Ex Tax:R477
Brand: DELOCK
Stock: 500
The DELOCK USB RS-232 Adapter converts a USB 2.0 Type-A port into a D-Sub 9 male RS-232 serial connector. The cable is 1.8 m long and the compact RS-2..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
DB9
R568
Ex Tax:R494
Brand: DELOCK
Stock: 97
The DeLOCK Adapter USB 2.0 Type-A to Serial RS-232 D-Sub 9 pin male with a short cable allows connection of RS-232 serial devices to a computer USB Ty..
Interface Type
USB Type-A
Product Type
USB-to-Serial Adapter
Number of Po...
1 Port
Connector B
Serial Port
R867
Ex Tax:R754
Brand: DELOCK
Stock: 52
The DeLOCK 90494 is a 0.35 m serial cable that converts a USB Type-C connection to two RS-232 DB9 ports. Designed for stable data transfer, the compac..
Interface Type
USB-C
Product Type
Multi-Port USB Serial Hub
Number of Po...
2 Ports
Connector B
DB9
R1,265
Ex Tax:R1,100