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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Description Price Type Interface Type LAN Category Number of Ports Shield Type Wiring Configuration Length Width Depth Diameter Extension Length Series Series Number
RS庫存編號 765-9088
製造零件編號09454521510
BrandHARTING
HK$332.90
單位
Coupler RJ45 Plug/RJ45 Socket Cat6 - - Straight Through 1.5m - - - - - -
RS庫存編號 186-3149
BrandRS PRO
HK$40.38
單位
Coupler RJ45 - 2 UTP Straight Through 20.55mm 14.48mm 26.96mm - - - -
RS庫存編號 765-9034
製造零件編號09454521560
BrandHARTING
HK$162.01
單位
Coupler RJ45 Socket/RJ45 Socket Cat6 1 Shielded - - - 35.9mm - - - -
RS庫存編號 875-5604
製造零件編號20820010002
BrandHARTING
HK$96.59
單位
HIFF Jack RJ45 - 1 - Crossed 15.6mm 13.15mm 41mm - - Ha-VIS preLink 2082001
RS庫存編號 340-9624
BrandRS PRO
HK$59.42
單位
Coupler RJ45 Female Cat5 - UTP Straight Through 17.3mm 16.3mm 28mm - - - -
RS庫存編號 186-3048
BrandRS PRO
HK$35.60
單位
Coupler RJ45 Cat3 - UTP Straight Through 22.02mm 16mm 37.3mm - - - -
RS庫存編號 186-3133
BrandRS PRO
HK$23.45
單位
Coupler RJ11 - 2 Unshielded Straight Through 20.55mm 14.48mm 26.96mm - - - -
RS庫存編號 340-9630
BrandRS PRO
HK$64.07
單位
Coupler RJ45 Female Cat5 - STP Straight Through 25mm 25mm 45mm - - - -
RS庫存編號 619-5479
製造零件編號PX0839/PC
BrandBulgin
HK$76.42
單位
Coupler RJ45 Cat5e 1 - - - - 45mm 35.7mm - Buccaneer -
RS庫存編號 186-3161
BrandRS PRO
HK$46.84
單位
Extender RJ45 Female, RJ45 Male Cat3 1 - - - - - - 2 m - -
RS庫存編號 186-3098
BrandRS PRO
HK$36.19
單位
Splitter RJ45 - 2 - Straight Through 21mm 26mm 36mm - - - -
RS庫存編號 186-3155
BrandRS PRO
HK$36.64
單位
Extender RJ11 Female, RJ11 Male Cat3 1 - - - - - - 2 m - -
RS庫存編號 765-9084
製造零件編號09454521504
BrandHARTING
HK$270.50
單位
Coupler RJ45 Plug/RJ45 Socket Cat6 1 Shielded Straight Through 500mm - - 27.9mm - - -
RS庫存編號 360-7115
BrandRS PRO
HK$64.86
單位
Coupler RJ45 Male Cat5e - UTP Straight Through 19.6mm 23mm 32.5mm - - - -
RS庫存編號 186-3105
BrandRS PRO
HK$13.44
單位
Adapter RJ45 - 2 - Straight Through 21mm 26mm 36mm - - - -
RS庫存編號 625-6209
BrandRS PRO
HK$37.99
單位
Adapter RJ11 - - - Straight Through 18mm 45mm 28mm - - - -
RS庫存編號 885-7696
製造零件編號30-9242
HK$78.93
單位
Coupler RJ45 Female Cat5e 1 Shielded Straight Through 25mm 23.5mm 47mm - - - 30
RS庫存編號 768-4416
製造零件編號EHRJ45P5ERS
HK$78.76
單位
Adapter RJ45 Cat5e - - - 26mm 31mm 30mm - - - -
RS庫存編號 186-3111
BrandRS PRO
HK$48.99
單位
Modular Coupler RJ45 - 2 Shielded Straight Through 18.54mm 21mm 27.46mm - - - -
RS庫存編號 886-0579
製造零件編號40-9538M
HK$20.114
/個 (每包:10個)
單位
D-Sub Modular Adapter Kit DB9, RJ45 - 1 (RJ45) - Straight Through - - - - - - 40