Conwork 2-Pack Optical Toslink Digital Audio Extension Cable Coupler Connector Adapter, Female to Female Extend length of your optical toslink cable with this adapter by combining 2 optical toslink cables. Connect two Toslink cables together with this adapter Great for large rooms that have surround sound, such as Dolby speakers located around the room Compatible with CD, D/A Converters, Dolby Digital DTS Surround sound receivers, DVD, MiniDisk players and recorders, ProAudio cards, etc. Package Content: 2 x Female to Female Toslink Digital Audio Cable Connector. Limited Lifetime Warranty.