RJ Adapters, Couplers & Extensions

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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Viewing 1 - 19 of 19 products
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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
RS Stock No. 875-5641
Mfr. Part No.20821010010
BrandHARTING
MYR97.84
Each
units
Plug RJ45 - 1 - Crossed 14.4mm 18.6mm 47.35mm - - Ha-VIS preLink 2082101
RS Stock No. 765-9034
Mfr. Part No.09454521560
BrandHARTING
MYR89.70
Each
units
Coupler RJ45 Socket/RJ45 Socket Cat6 1 Shielded - - - 35.9mm - - - -
RS Stock No. 765-9097
Mfr. Part No.09454521513
BrandHARTING
MYR186.96
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 - - Straight Through 3m - - - - - -
RS Stock No. 765-9084
Mfr. Part No.09454521504
BrandHARTING
MYR152.82
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 1 Shielded Straight Through 500mm - - 27.9mm - - -
RS Stock No. 875-5565
Mfr. Part No.09454521561
BrandHARTING
MYR79.93
Each
units
Coupler RJ45 - 1 - - 35.9mm - - 27.9mm - Har-Port 0945452
RS Stock No. 875-5654
Mfr. Part No.20821010001
BrandHARTING
MYR117.50
Each
units
Extender RJ45 - 1 - Crossed 15.6mm 13.15mm 65.7mm - - 2082 2082101
RS Stock No. 765-9025
Mfr. Part No.09452451560
BrandHARTING
MYR85.79
Each
units
Adapter RJ45 Socket/RJ45 Socket Cat6 - - - 20.5mm 32.3mm 48.8mm - - - -
RS Stock No. 875-5610
Mfr. Part No.20821010220
BrandHARTING
MYR271.91
Each
units
Junction Box RJ45 Cat6EA 2 - Crossed 60mm 81mm 70mm - - Ha-VIS preLink 2082101
RS Stock No. 783-4055
Mfr. Part No.09140009966
BrandHARTING
MYR15.68
Each
units
Adapter RJ45 Cat5e 8 - Straight Through 25.3mm 31.2mm 13mm - - - -
RS Stock No. 843-6429
Mfr. Part No.09452151107
BrandHARTING
MYR253.58
Each
units
Coupler RJ45 Male Cat5 1 UTP Straight Through 40mm - 66.6mm - - HAN 3A RJ45 0945
RS Stock No. 765-9088
Mfr. Part No.09454521510
BrandHARTING
MYR139.97
Each
units
Coupler RJ45 Plug/RJ45 Socket Cat6 - - Straight Through 1.5m - - - - - -
RS Stock No. 875-5613
Mfr. Part No.20820000002
BrandHARTING
MYR35.82
Each
units
HIFF Jack RJ45 - 1 - Crossed 15.6mm 13.15mm 41mm - - Ha-VIS preLink 2082000
RS Stock No. 875-5600
Mfr. Part No.20820010001
BrandHARTING
MYR41.56
Each
units
HIFF Jack RJ45 - 1 - Crossed 15.6mm 13.15mm 41mm - - Ha-VIS preLink 2082001
RS Stock No. 765-9031
Mfr. Part No.09455451560
BrandHARTING
MYR51.64
Each
units
Coupler RJ45 Socket/RJ45 Socket Cat6 - Shielded - 13.25mm 15.7mm 34.5mm - - - -
RS Stock No. 174-1786
Mfr. Part No.09454521509
BrandHARTING
MYR173.02
Each
units
Port RJ45 RJ45 Plug/RJ45 Socket Cat6 1 Shielded Straight Through 1m - - 27.9mm - Har-Port -
RS Stock No. 875-5648
Mfr. Part No.20821040001
BrandHARTING
MYR146.56
Each
units
Plug RJ45 Cat6a - STP - 22.5mm 30mm 71mm - - Ha-VIS preLink 2082104
RS Stock No. 875-5644
Mfr. Part No.20822040001
BrandHARTING
MYR133.03
Each
units
Plug RJ45 Cat6a - STP - 22mm 26.2mm 69mm - - Ha-VIS preLink 2082204
RS Stock No. 875-5604
Mfr. Part No.20820010002
BrandHARTING
MYR41.56
Each
units
HIFF Jack RJ45 - 1 - Crossed 15.6mm 13.15mm 41mm - - Ha-VIS preLink 2082001
RS Stock No. 765-9028
Mfr. Part No.09452451590
BrandHARTING
MYR91.91
Each
units
Adapter RJ45 Socket/RJ45 Socket Cat6 - - - 34mm 34mm 48.2mm - - - -