ECF504-3AA-IVY is an ivory coupler with an A type female to female design and is rated for USB 3.0. Coupler/adapter options include A to A, A to B, and B to A connector combinations in addition to both chrome plated, shielded and unshielded housing designs. Allows USB cables to be passed through panels or enclosures using L-com's ECF style flange mount design with screw mounting for secure installation. The chrome plated design electrically connects the connector shells and ground to the housing's plating and is excellent for applications that require grounding your adapter/coupler to your panel or enclosure. L-com's ECF style USB adapter products securely mount via 4-40 screws which are sold separately (part number ECF440). Applications include PC peripheral interconnects and computing, data acquisition and storage, test and measurement, video and data transfer, printers and servers.