.hide-partial { max-height: none; } .show-more { display: none; }

K3 Interface Modules

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 2,779

Applied Filters:

Manufacturer

Product

Type

Number of Channels / Ports

Maximum Data Rate

Interface Type

Supply Voltage - Min

Supply Voltage - Max

Minimum Operating Temperature

Maximum Operating Temperature

Series

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Interface Modules Gravity: Active Isolated RS485 to UART Signal Adapter Module

DFR0845
DFRobot
1: $25.87
73In Stock

Mfr. Part #
DFR0845

Mouser Part #
426-DFR0845

DFRobot

Interface Modules Gravity: Active Isolated RS485 to UART Signal Adapter Module

Learn More

73In Stock

$25.87

Min.: 1
Mult.: 1

Adapters

RS-485 to UART

2 Port

1 Mb/s

RS-485, UART

3.3 V

5 V

- 40 C

+ 105 C

Interface Modules USB to RS485 Module

FIT0737
DFRobot
1: $11.05
242In Stock
627Expected 8/12/2026

Mfr. Part #
FIT0737

Mouser Part #
426-FIT0737

DFRobot

Interface Modules USB to RS485 Module

Learn More

242In Stock

627Expected 8/12/2026

$11.05

Min.: 1
Mult.: 1

Converters

USB to RS-485

2 Port

115.2 kb/s

RS-485, USB

- 40 C

+ 85 C

Interface Modules Industrial Grade RS485 Repeater

FIT0772
DFRobot
1: $77.87
31In Stock
54Expected 8/5/2026

Mfr. Part #
FIT0772

Mouser Part #
426-FIT0772

DFRobot

Interface Modules Industrial Grade RS485 Repeater

Learn More

31In Stock

54Expected 8/5/2026

$77.87

Min.: 1
Mult.: 1

Repeaters

RS-485

2 Port

9.6 kb/s

RS-485

9 V

24 V

- 20 C

+ 70 C

Interface Modules UR20-FBC-EC

1334910000
Weidmuller
1: $412.44
10In Stock

Mfr. Part #
1334910000

Mouser Part #
470-1334910000

Weidmuller

Interface Modules UR20-FBC-EC

Learn More

Datasheet

10In Stock

$412.44

$402.38

Min.: 1
Mult.: 1

I/O Modules

Remote I/O Fieldbus Coupler

- 20 C

+ 60 C

UR20

Interface Modules UR20-FBC-EIP

1334920000
Weidmuller
1: $637.99
4In Stock

Mfr. Part #
1334920000

Mouser Part #
470-1334920000

Weidmuller

Interface Modules UR20-FBC-EIP

Learn More

Datasheet

4In Stock

$637.99

$603.66

Min.: 1
Mult.: 1

I/O Modules

Remote I/O Fieldbus Coupler

- 20 C

+ 60 C

UR20

Interface Modules UR20-FBC-EC-ECO

2659690000
Weidmuller
1: $375.79
7In Stock

Mfr. Part #
2659690000

Mouser Part #
470-2659690000

Weidmuller

Interface Modules UR20-FBC-EC-ECO

Learn More

Datasheet

7In Stock

$375.79

$335.62

$327.42

Min.: 1
Mult.: 1

Bus Couplers

Remote I/O Fieldbus Coupler

- 20 C

+ 60 C

UR20

Interface Modules ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port

BB-232LPTTL33
Advantech
1: $93.60
72In Stock
232On Order

Mfr. Part #
BB-232LPTTL33

Mouser Part #
600-232LPTTL33

Advantech

Interface Modules ULI-227D3 RS-232 to TTL 3.3 V CNVTR Port

Learn More

Datasheet

72In Stock

232On Order

$93.60

Min.: 1
Mult.: 1

Converters

RS-232 to TTL/CMOS

2 Port

115.2 kb/s

RS-232

3.3 V

0 C

+ 70 C

Interface Modules ULI-321D USB to 1 x RS-232 DB9M CNV

BB-232USB9M
Advantech
1: $107.90
27In Stock

Mfr. Part #
BB-232USB9M

Mouser Part #
600-232USB9M

Advantech

Interface Modules ULI-321D USB to 1 x RS-232 DB9M CNV

Learn More

Datasheet

27In Stock

$107.90

Min.: 1
Mult.: 1

Converters

USB to RS-232

2 Port

12 Mb/s

RS-232, USB

5 V

- 40 C

+ 80 C

Interface Modules ULI-223T RS-422 Converter, Port Powered,

BB-422PP9TB
Advantech
1: $115.70
55In Stock

Mfr. Part #
BB-422PP9TB

Mouser Part #
600-422PP9TB

Advantech

Interface Modules ULI-223T RS-422 Converter, Port Powered,

Learn More

Datasheet

55In Stock

$115.70

Min.: 1
Mult.: 1

Converters

RS-232 to RS-422

2 Port

115.2 kb/s

RS-232/422

5 V

0 C

+ 70 C

BB-485USBTB-2W-LS

Interface Modules ULI-224TE Heavy Ind. RS-232 to RS-422/48

BB-485DRCI-PH
Advantech
1: $400.40
10In Stock

Mfr. Part #
BB-485DRCI-PH

Mouser Part #
600-485DRCI-PH

Advantech

Interface Modules ULI-224TE Heavy Ind. RS-232 to RS-422/48

Datasheet

10In Stock

$400.40

Min.: 1
Mult.: 1

Converters

RS-232 to RS-422/485

2 Port

115.2 kb/s

RS-232/422/485

10 V

48 V

- 40 C

+ 85 C

Interface Modules ULI-234TC Ind. RS-422/485 Repeater / Iso

BB-485OPDR
Advantech
1: $308.10
18In Stock
111On Order

Mfr. Part #
BB-485OPDR

Mouser Part #
600-485OPDR

Advantech

Interface Modules ULI-234TC Ind. RS-422/485 Repeater / Iso

Learn More

Datasheet

18In Stock

111On Order

$308.10

Min.: 1
Mult.: 1

Repeaters

RS-422/485

2 Port

115.2 kb/s

RS-422/485

10 V

30 V

- 40 C

+ 80 C

Interface Modules ULI-234TCI 3-Way Iso. RRS-485/422 DIN Ra

BB-485OPDRI
Advantech
1: $354.90
14In Stock

Mfr. Part #
BB-485OPDRI

Mouser Part #
600-485OPDRI

Advantech

Interface Modules ULI-234TCI 3-Way Iso. RRS-485/422 DIN Ra

Datasheet

14In Stock

$354.90

Min.: 1
Mult.: 1

Repeaters

RS-422/485

2 Port

115.2 kb/s

RS-422/485

10 V

48 V

- 40 C

+ 80 C

Interface Modules ULI-226D RS-485 Converter, Port Powered,

BB-485SD9R
Advantech
1: $115.70
148In Stock

Mfr. Part #
BB-485SD9R

Mouser Part #
600-485SD9R

Advantech

Interface Modules ULI-226D RS-485 Converter, Port Powered,

Learn More

Datasheet

148In Stock

$115.70

Min.: 1
Mult.: 1

Converters

RS-232 to RS-485

2 Port

115.2 kb/s

RS-232/485

12 V

0 C

+ 70 C

Interface Modules ULI-361DK USB to 1 x Lck RS-485 2W DB9F

BB-485USB9F-2W-LS
Advantech
1: $137.80
26In Stock

Mfr. Part #
BB-485USB9F-2W-LS

Mouser Part #
600-485USB9F-2W-LS

Advantech

Interface Modules ULI-361DK USB to 1 x Lck RS-485 2W DB9F

Datasheet

26In Stock

$137.80

Min.: 1
Mult.: 1

Converters

USB to RS-485

2 Port

12 Mb/s

RS-485, USB

5 V

- 40 C

+ 70 C

Interface Modules ULI-224TCL RS-232 to Iso. RS-422/485 CNV

BB-4WSD9OTB
Advantech
1: $185.90
105In Stock

Mfr. Part #
BB-4WSD9OTB

Mouser Part #
600-4WSD9OTB

Advantech

Interface Modules ULI-224TCL RS-232 to Iso. RS-422/485 CNV

Learn More

Datasheet

105In Stock

$185.90

Min.: 1
Mult.: 1

Converters

RS-232 to RS-422/485

2 Port

115.2 kb/s

RS-232/422/485

10 V

48 V

0 C

+ 70 C

Interface Modules ULI-224T RS-232 to RS422/485 (2 Wire and

BB-4WSD9TB
Advantech
1: $123.50
49In Stock

Mfr. Part #
BB-4WSD9TB

Mouser Part #
600-4WSD9TB

Advantech

Interface Modules ULI-224T RS-232 to RS422/485 (2 Wire and

Datasheet

49In Stock

$123.50

Min.: 1
Mult.: 1

Converters

RS-232 to RS-422/485

2 Port

115.2 kb/s

RS-232/422/485

12 V

0 C

+ 70 C

Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9

BB-9PMDS
Advantech
1: $100.10
130In Stock

Mfr. Part #
BB-9PMDS

Mouser Part #
600-9PMDS

Advantech

Interface Modules ULI-262D RS-232 Modem Data Splitter, DB9

Learn More

Datasheet

130In Stock

$100.10

Min.: 1
Mult.: 1

Splitters

RS-232

3 Port

RS-232

0 C

+ 70 C

Interface Modules ULI-232DSH RS-232 (DB9 M/F) Isolator

BB-9POP4
Advantech
1: $146.77
24In Stock

Mfr. Part #
BB-9POP4

Mouser Part #
600-9POP4

Advantech

Interface Modules ULI-232DSH RS-232 (DB9 M/F) Isolator

Datasheet

24In Stock

$146.77

Min.: 1
Mult.: 1

Isolators

RS-232

2 Port

230.4 kb/s

RS-232

12 V

0 C

+ 70 C

Interface Modules ULI-232DS RS-232 Isolator, DB9

BB-9SPOP2
Advantech
1: $123.50
90In Stock

Mfr. Part #
BB-9SPOP2

Mouser Part #
600-9SPOP2

Advantech

Interface Modules ULI-232DS RS-232 Isolator, DB9

Datasheet

90In Stock

$123.50

Min.: 1
Mult.: 1

Isolators

RS-232

2 Port

115.2 kb/s

RS-232

0 C

+ 70 C

Interface Modules RS-422 TO TTL CONVERTER

BB-422TTL
Advantech
1: $93.60
144In Stock

Mfr. Part #
BB-422TTL

Mouser Part #
600-BB-422TTL

Advantech

Interface Modules RS-422 TO TTL CONVERTER

Datasheet

144In Stock

$93.60

Min.: 1
Mult.: 1

Converters

RS-422 to TTL

2 Port

115.2 kb/s

RS-422, TTL

12 V

0 C

+ 70 C

BB-485USBTB-2W-LS

Interface Modules ULI-211C RS-232/422/485 to Fiber Convert

BB-FOSTCDR
Advantech
1: $416.39
22In Stock
25Expected 8/10/2026

Mfr. Part #
BB-FOSTCDR

Mouser Part #
600-FOSTCDR

Advantech

Interface Modules ULI-211C RS-232/422/485 to Fiber Convert

Datasheet

22In Stock

25Expected 8/10/2026

$416.39

Min.: 1
Mult.: 1

Converters

RS-232/422/485 to Fiber Optic

2 Port

115.2 kb/s

Fiber Optic, RS-232/422/485

10 V

30 V

- 40 C

+ 80 C

Interface Modules ULI-211CI RS-232/422/485 to Fiber Conver

BB-FOSTCDRI
Advantech
1: $452.40
5In Stock

Mfr. Part #
BB-FOSTCDRI

Mouser Part #
600-FOSTCDRI

Advantech

Interface Modules ULI-211CI RS-232/422/485 to Fiber Conver

Datasheet

5In Stock

$452.40

Min.: 1
Mult.: 1

Converters

RS-232/422/485 to Fiber Optic

2 Port

115.2 kb/s

Fiber Optic, RS-232/422/485

10 V

48 V

- 40 C

+ 80 C

Interface Modules FOSTCDRI with Inverted fiber.

BB-FOSTCDRI-INV
Advantech
1: $452.40
25In Stock

Mfr. Part #
BB-FOSTCDRI-INV

Mouser Part #
600-FOSTCDRI-INV

Advantech

Interface Modules FOSTCDRI with Inverted fiber.

Datasheet

25In Stock

$452.40

Min.: 1
Mult.: 1

Converters

RS-232/422/485 to Fiber Optic

3 Port

115.2 kb/s

Fiber Optic, RS-232/422/485

10 V

48 V

- 40 C

+ 80 C

Interface Modules USB TO USB 1 PORT ISOLATOR - 2KV

BB-UH401-2KV
Advantech
1: $159.90
99In Stock

Mfr. Part #
BB-UH401-2KV

Mouser Part #
600-UH401-2KV

Advantech

Interface Modules USB TO USB 1 PORT ISOLATOR - 2KV

Datasheet

99In Stock

$159.90

Min.: 1
Mult.: 1

Isolators

USB 1.1

1 Port

12 Mb/s

USB 1.1

5 V

- 40 C

+ 80 C

Interface Modules ULI-421C USB 4kV Isolator, Rugged

BB-UHR401
Advantech
1: $262.60
30In Stock
40Expected 9/10/2026

Mfr. Part #
BB-UHR401

Mouser Part #
600-UHR401

Advantech

Interface Modules ULI-421C USB 4kV Isolator, Rugged

Datasheet

30In Stock

40Expected 9/10/2026

$262.60

Min.: 1
Mult.: 1

Isolators

USB 2.0

1 Port

12 Mb/s

USB 2.0

10 V

30 V

0 C

+ 50 C

K3 Interface Modules

Customer Service Office

Company

Resources

Support

ABB
Adafruit
ADLINK Technology
Advanced Energy
Advantech
Analog Devices Inc.
Applied Motion
ARBOR Technology
ArduSimple
Auvidea
Axiomtek
Azoteq
Banner Engineering
Basler
Brainboxes
Broadcom Limited
Carlo Gavazzi
CCS
Connective Peripherals
Crouzet
Delta Electronics
DFRobot
Digi International
Digital View
Display Visions
dissecto
DLP Design
Eaton
EMO Systems
Endress+Hauser
Eurotech
FCL Components
FTDI
HARTING
Hilscher
Hirschmann
HMS Networks
Honeywell
IBASE
iC-Haus
IDEC
IEI
Infineon
Innodisk
iWave Global
IXYS
Keithley Instruments, Inc.
Keysight
Kontron
Lantronix
L-Com
Leopard Imaging
Littelfuse
LPRS
M5Stack
Maxtena
MEAN WELL
MeatPi
Microchip
Molex
Monnit
Monolithic Power Systems (MPS)
MultiTech
Murrelektronik
NetBurner
Nexcom
ODrive Robotics
Olimex Ltd.
Omron
Opto 22
Performance Motion Devices
Phoenix Contact
ProSoft Technology
ROBOTIS
Samtec
Sanyo Denki
Schneider Electric
Seeed Studio
Sensata
Shin Chin
Siemens
Staco
StarTech
TechxArtisan
Tektronix
Telemecanique Sensors
Trenz Electronic
Tripp Lite
u-blox
Vector
Vicor
Vishay
Weidmuller
WIZnet
Xenarc

Adapaters
Adapters
Add-On Boards
Audio Decoder
Audio Encoder
Audio Encoder/Decoder
Auto-configuration Adapter
Backplanes
Boosters
Bridges
Bus Couplers
CAN Bus Extenders
Card Readers
Communication Converters
Communication Modules
Communication Option Boards
CompactPCI Serial Cards
Controllers
Converters
Device Couplers

1-Axis
1-Wire to USB 2.0
2-Channels Communication
2U Butterfly
3U CompactPCI
3U cPCI
4-Channels Communication
4G, 5G, CAN, Ethernet
6U CompacPCI
AC Interface Module
APAX-5001
APAX-5002
AV Connectivity, Power , Charging
Actuator Sensor Interface - AS-i
Adapter Cable
Adapter Card
Analog I/O, Digital I/O
BiSS to USB 2.0
BiSS, I2C to USB
Bluetooth

1 Port
2 Port
3 Port
4 Port
5 Port
6 Port
7 Port
8 Port
9 Port
10 Port
12 Port
13 Port
14 Port
16 Port
18 Port
32 Port
1 Channel
1 Slot
2 Channel
2 Slot

1.2 kb/s
8 kb/s
9.6 kb/s
38.4 kb/s
90 kb/s
115 kb/s
0.1152 Mb/s
115.2 Kbps
115.2 kb/s
120 kb/s
230 kb/s
230.4 kb/s
250 kb/s
250 kbps
460.8 kb/s
500 kb/s
576 kb/s
921.6 Kbps
921.6 kb/s
1 Mb/s

USB
Ethernet
CAN
RS-232, USB
Serial
RS-232
RJ45
RS-485
RS-232, USB 2.0
RS-422/485, USB
PCI, RS-232
RS-232/422/485
RJ-45
Ethernet, RS-232/422/485
PCI, PCIe
PCIe
PROFIBUS
RS-485, USB
RS-485, USB 2.0
Ethernet, Modbus

0 V
2.25 V
2.4 V
2.7 V
3 V
3.135 V
3.3 V
3.3 V, 12 V
3.3 V, 5 V
3.3 V, 5 V, 12 V
3.3 V/5 V
4 V
4.25 V
4.5 V
5 V
5 V, 12 V
5 V, 21 V
5 V/12 V
5.5 V
7 V

3.3 V
3.3 V, 12 V
3.3 V, 5 V
3.3 V, 5 V, 12 V
3.3 V/5 V
3.465 V
3.6 V
5 V
5 V, 12 V
5.2 V
5.25 V
5.5 V
10 V
12 V
14 V
15 V
16 V
24 V
24 VAC
25 V

1
4
30D
9700 Series
90655
112011
112021
112034
120111
20A
3SU1
ABFC
ABFH
ACA
ADAM-4000
ADAM-4542+
ADAM-4561
ADAM-4562
APAX-5001/5002
ATOM