Ethernet Couplers

RJ (registered jack) adapters are devices used to convert registered jack connections from one type to another. RJ25 connectors are a standardised connection used in telecommunications applications.

What are RJ adapters used for?

RJ adapters can cover a range of purposes, depending on what type of adapter they are.

  • Couplers join two different connectors together, using two input ports
  • Extensions increase the range of transmission by adding to the length of cable
  • Adapters proper allow different connections to be joined, such as an M12 cable joining to an RJ45 connection

Types of RJ adapters

RJ adapters mainly differ in how many ports they have. They may have between one and six ports, allowing them to connect up to six cables. They can also differ in their wiring configuration, and indeed there are many different types of adapters, from feedthrough connectors to junction boxes to couplers, depending on what you need to convert between. They can be shielded or unshielded.


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Description Price Type Interface Type LAN Category Number of Ports Shield Type Wiring Configuration Length Width Depth Diameter Extension Length Series Series Number Voltage Rating
RS Stock No. 768-5532
Mfr. Part No.IE-BSS-V14M-RJ45-C -1012310000
BrandWeidmuller
SGD59.91
Each
units
Coupler RJ45 Cat6a - - - - - - - - - - -
RS Stock No. 875-5644
Mfr. Part No.20822040001
BrandHARTING
SGD44.89
Each
units
Plug RJ45 Cat6a - STP - 22mm 26.2mm 69mm - - Ha-VIS preLink 2082204 -
RS Stock No. 783-4055
Mfr. Part No.09140009966
BrandHARTING
SGD3.62
Each
units
Adapter RJ45 Cat5e 8 - Straight Through 25.3mm 31.2mm 13mm - - - - -
RS Stock No. 130-2310
Mfr. Part No.1419022
SGD37.45
Each
units
Coupler RJ45 Female Cat6 2 - Straight Through 23mm 28.8mm 18mm - - CUC-F-D1ZNI-S/R4GC8 - -
RS Stock No. 878-2432
Mfr. Part No.J60020A0002
SGD106.23
Each
units
Coupler RJ45 Cat6 1 Shielded Straight Through 38mm 38mm 44.8mm - - TOC - -
RS Stock No. 885-8116
Mfr. Part No.30-1008KUL
SGD2.244
Each (In a Pack of 10)
units
Coupler - - 1 Unshielded Straight Through 22.5mm 17mm 37.5mm - - - 30 -
RS Stock No. 765-9088
Mfr. Part No.09454521510
BrandHARTING
SGD61.98
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 - - Straight Through 1.5m - - - - - - -
RS Stock No. 208-1792
Mfr. Part No.1 42-114
BrandMolex
SGD10.56
Each
units
Extender RJ45 - - - - - - - - 150 mm - - -
RS Stock No. 765-9097
Mfr. Part No.09454521513
BrandHARTING
SGD70.62
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 - - Straight Through 3m - - - - - - -
RS Stock No. 848-5437
Mfr. Part No.CMBAEIY
BrandPanduit
SGD15.80
Each
units
BNC Coupler Module - - - - Straight Through 45.2mm 15.4mm 18.3mm - - CMBA - -
RS Stock No. 292-8893
Mfr. Part No.TA1034P4CD
SGD17.67
Each
units
- - - - - - - - - - - - - -
RS Stock No. 875-5641
Mfr. Part No.20821010010
BrandHARTING
SGD25.98
Each
units
Plug RJ45 - 1 - Crossed 14.4mm 18.6mm 47.35mm - - Ha-VIS preLink 2082101 -
RS Stock No. 875-5600
Mfr. Part No.20820010001
BrandHARTING
SGD20.89
Each
units
HIFF Jack RJ45 - 1 - Crossed 15.6mm 13.15mm 41mm - - Ha-VIS preLink 2082001 -
RS Stock No. 875-5648
Mfr. Part No.20821040001
BrandHARTING
SGD43.71
Each
units
Plug RJ45 Cat6a - STP - 22.5mm 30mm 71mm - - Ha-VIS preLink 2082104 -
RS Stock No. 768-4428
Mfr. Part No.EHRJ45P6
SGD16.88
Each
units
Adapter RJ45 Cat6 - - - 26mm 31mm 30mm - - - - -
RS Stock No. 765-9785
Mfr. Part No.PXP6033TP
BrandBulgin
SGD67.82
Each
units
Coupler RJ45 Socket Cat5e 2 STP Straight Through 49.2mm - - 32mm - Buccaneer 6000 -
RS Stock No. 765-9084
Mfr. Part No.09454521504
BrandHARTING
SGD62.44
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 1 Shielded Straight Through 500mm - - 27.9mm - - - -
RS Stock No. 843-6429
Mfr. Part No.09452151107
BrandHARTING
SGD90.89
Each
units
Coupler RJ45 Male Cat5 1 UTP Straight Through 40mm - 66.6mm - - HAN 3A RJ45 0945 -
RS Stock No. 695-0210
Mfr. Part No.RJ11F21G
BrandAmphenol
SGD89.28
Each
units
Adapter RJ11 Female - 6 UTP Straight Through 39.7mm 28.6mm 28.6mm - - RJ11Field RJ11F21G -
RS Stock No. 765-9965
Mfr. Part No.PXM6033TP
BrandBulgin
SGD64.36
Each
units
Coupler RJ45 Male Cat5e - STP - 42.2mm - - 32mm - Buccaneer - -
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