USB 2.0 Keystone Jack Insert [Type A Female to Type B Female] Reversible White (333-310) [Pack of 1] Buy Now, Save More Buy More, Save Extreme This white keystone insert coupler allows you to convert back and forth between a USB 2.0 type A female plug to a type B female adapter - attach any USB 1.1 or 2.0 cable with ease. This reversible adapter is designed to use with all keystone-style wall plates and standard USB 2.0 cables. It is housed in high-impact ABS resin (acrylonitrile butadiene styrene) and is UL 94 V-0 rated. This USB 2.0 connector's shell is made from copper alloy and is plated with nickel -expect exceptional performance with this coupler's contacts that are made from phosphor bronze, plated gold and nickel. Materials: Housing: High-impact Acrylonitrile Butadiene Styrene (ABS resin), UL 94 V-0 rated PCB: FR4 USB 2.0 Connector Shell: Copper alloy, Plated with Nickel Plastic : High-impact Polybutylene Terephthalate (PBT resin), UL 94 V-0 rated Contact: Phosphor Bronze, Plated with Hard Gold over Nickel underplate on Contact area, Plated with tin over Nickel underplate on Solder acea