This is a thirty foot Male/Female Aquabus cable that is used as an extension cable to connect Neptune Systems’ products over great distances. So if you have the aquarium in your basement and your other aquarium in your kitchen (because who has just one aquarium?), then you can control all of that from one Apex System! Use the 30′ Aquabus cable along with the 30′ Aquabus extension cable, then you can run two aquariums that are 60 feet apart.
NOTE: You can have up to 200′ of Aquabus cable per system and it is recommended that you have one powered Neptune Systems accessory (i.e. Energy Bar or 1LINK module) every 75′.