Keystone CAT6a | RJ45 socket | U/UTP | ABS | Box Keystone is a standardized click system for mounting connections, e.g. in sockets, outlet boxes, mounting frames, patch panels, DIN rails, etc. With Keystone, connections can be easily mounted anywhere without screws or soldering. The modules are clicked into the openings and the cables can be connected. This Keystone module is suitable for unshielded CAT6a U/UTP cables.