No more need for connectors and couplers when you have these junction box punch down types. Multiple couplers and connections are convenient for temporary wiring, but have twice as many connections to go bad in the long run. Junction boxes are best used for permanent connections. If you are going to join 2 wires together permanently, it is best to have the most direct connection possible.
110 type is used for splicing two Ethernet Cat.5e and Cat 6 cables together. In addition, the krone punch down connection provides secure continuity. Designed with a wire gage of 23 to 26 AWG, us 568A/568B color coded and UL listed for product safety. Available only in white.