Junction box is for splicing two Ethernet Cat 6 cables together without the use of connectors and couplers; if you're going to joint 2 wires together permanently, it's best to have as direct a connection as possible. The punch down connection provides secure continuity. The wiring junction box is 110 punch down type and Krone type and is for use with Cat 6 cables. The wire gage is 23-26 AWG and is 568A/568B color coded. The Cat 6 junction box is UL listed and has a lifetime warranty. Achieve Installation Perfection with InstallerParts - Choice of Audio, Video, and IT Professionals! Each item that we offer has been hand selected by our team and achieves our standards for premium quality. Our factory-partners employ industry environmental standards such as ISO9001, ISO14001 or RoHS. With our factory direct low pricing, fast same-day shipping, flexible 30-day Amazon-matched return policy and a lifetime warranty on most non-electrical items, you can purchase InstallerParts products with maximum confidence.