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 - 8 of 8 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. 333-6649
Mfr. Part No.DBFB8812
HK$199.50
Each
units
Splitter RJ45 Female, RJ45 Male Cat5e 2 Shielded - - - - - 250 mm - -
RS Stock No. 293-7948
Mfr. Part No.SPE164212
HK$58.50
Each
units
- - - - - - - - - - - - -
RS Stock No. 333-6611
Mfr. Part No.DPM8812
HK$188.00
Each
units
Splitter RJ45 Female, RJ45 Male Cat5e 3 - - 14mm 37mm 48mm - - - -
RS Stock No. 364-4322
Mfr. Part No.SPE190689
HK$174.25
Each
units
Splitter RJ45 - 4 - - 26mm 55mm 62mm - - - -
RS Stock No. 333-6627
Mfr. Part No.DPMB8812
HK$260.00
Each
units
Splitter RJ45 Female, RJ45 Male Cat5e 3 - - 14mm 37mm 48mm - - - -
RS Stock No. 292-8893
Mfr. Part No.TA1034P4CD
HK$81.19
Each
units
- - - - - - - - - - - - -
RS Stock No. 364-4316
Mfr. Part No.SPE190688
HK$221.00
Each
units
Splitter RJ45 - 4 - - 26mm 55mm 62mm - - - -
RS Stock No. 333-6633
Mfr. Part No.DBF8812
HK$125.01
Each
units
Splitter RJ45 Female, RJ45 Male Cat5e 3 - - - - - - - - -