These jacks are great for mounting in tight spots or if you want to keep your cables neat and organized. These keystone jacks have an 110-punchdown sleeving which makes it simple enough that even beginners can use them with ease!Cables To Go's Category 6 Keystone Jacks are designed for superior performance that meets or exceeds industry standard Category 6/Class E according to TIA/EIA 568B 2.1 and ISO 11801 2nd edition. The keystone jack will balance signal transmission of insertion loss and crosstalk from 1 to 250 MHz. Jacks are available in 9 colors to match housing or allow color-coded designation port in compliance with TIA-606 requirements. The jacks are designed to work in conjunction with Cables To Go's Premise Plus wallplates and surface boxes or any standard keystone and angled multimedia wallplate or patch panel. Each keystone jack includes 110-type IDC termination with strain relief caps, and comes standard with 50µ inch gold plating on the jack contacts.