In-line D-pass through Type : Easy to Install, the screws that need to be installed are provided with the product, ensure safe and stable,and with dust cover protection. Wide Application : This female to female coupler pass through adapter can be installed on the ground socket,desktop socket,86 panel,used for cinema, stage,home audio and video,KTV and various weak current engineering facilities connection port. USB 3.0 Port Female to Female Converter : This USB 3.0 female to female coupler socket adopts standard D-type installation size. It provides solid chassis protection to ensure durability and to meet special needs under some harsh conditions. Optional front panel mounting and rear panel mounting. Function : USB 3.0 female to female connector socket can connect two USB cables in series into a longer line. USB3.0 Connector : This USB 3.0 panel mount socket provides a more stable and super speed transmission, environment for data in the electronic information environment.Up to 5Gbps.