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 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 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
RS庫存編號 886-0434
製造零件編號40-9538F
HK$21.385
/個 (每包:10個)
單位
D-Sub Modular Adapter Kit DB9, RJ45 - 1 (RJ45) - Straight Through - - - - - - 40
RS庫存編號 885-7680
製造零件編號30-9344B
HK$58.82
單位
Coupler RJ45 Female Cat5e 1 Unshielded Straight Through 21.3mm 19mm 39.8mm - - - 30
RS庫存編號 885-7668
製造零件編號32-2058K
HK$14.244
/個 (每包:10個)
單位
RJ-31X Surface Jack Adapter RJ31X Female - 1 - Straight Through - - - - - - 32
RS庫存編號 885-8116
製造零件編號30-1008KUL
HK$12.224
/個 (每包:10個)
單位
Coupler - - 1 Unshielded Straight Through 22.5mm 17mm 37.5mm - - - 30