The HG Genuine ATRS-2xxx AOC is a high performance, cost effective modules for serial optical data communication applications to 25G, The ATRQ-Axxx transceiver  is a high data rate active optical cable (AOC), to overcome the bandwidth limitation of traditional copper cable, supporting 25.78Gbps at both electrical ends. 

The SFP-25G AOC assembly is a high performance integrated duplex serial data link for bi-directional communications. Physically, it is constructed out of a pair of SFP-25G terminations connected by a cable. The terminations contain the electrical connectors, the signal conditioning devices and the Physical Medium Dependent devices that are needed to ensure proper transmission across the chosen cable.