Female to Female Cat6 Keystone Coupler is compatible with Cat6, Cat5, Cat5e Ethernet cables. Fits all standard keystone wall-plates:Cat6 RJ45 Keystone jack in-line coupler installs in patch panels, surface mount boxes, or keystone wall plates (face plates) with standard keystone ports Gold plated contacts and easy snap-in retaining clip ensure a secure and corrosion free connection High-impact ABS plastic housing RJ45 keystone jack inline coupler meets Category 6 performance and in compliance with the TIA/EIA and ISO standard Connector Type: RJ45 Cable Type: Ethernet colour: black Material: ABS plastic Package Contents: 100 x Rj45 Coupler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.