The HYDROS Command Bus Cable connects HYDROS Control devices and accessories together — moving both data and power across the system over a single keyed connector. Daisy-chain a HYDROS controller to expansion modules, smart plugs, or sensors without needing extra power supplies for downstream devices. Browse our full lineup of HYDROS smart aquarium controllers and accessories for everything you need to expand your system. Features Carries data + power — one cable handles signaling and 12V supply between HYDROS devices, eliminating extra adapters. Threaded GX-12 connector — locking metal connectors won't pull loose under cabinet tension; sealed against drips and humidity. Multiple lengths — pick the right run for your sump, stand, or display so you're not coiling slack or stretching the cable thin. System-rated up to 14 ft — runs longer than 15 ft total require a data-only cable for downstream segments. Plug-and-play — no wiring or splicing; just thread and tighten the collar. Choosing a Length 1 Foot — short jumper between stacked or adjacent devices (Control + XP8, dosing module hops). 3 Foot — common run from controller to a nearby module on the same shelf. 6 Foot — typical reach from inside a stand up to a display-mounted sensor or down into a sump. 14 Foot — long runs to remote tanks, frag systems, or displays in another room. The longest power-carrying length supported. Specifications Brand HYDROS (CoralVue) Type Command Bus Cable — Data + Power Connector GX-12 threaded, both ends Available Lengths 1 ft, 3 ft, 6 ft, 14 ft Compatible With HYDROS Control 2 / 4, XP8 outlet bar, dosing modules, sensor expanders, ATO kits Use Case Freshwater & Saltwater aquarium controller systems Recommended Pairings HYDROS Control X4 + XP8 Pro Pack — full controller-and-outlet-bar bundle. HYDROS Control X2 Starter Pack — entry-level smart controller. HYDROS Triple Optical ATO Kit — auto top-off that connects via the same bus. HYDROS P205 Smart Plug — Wi-Fi controlled outlet. HYDROS Rope Leak Sensor Kit — protect cabinets with a leak alert. FAQ Which length should I buy? Measure the cable run from device to device with realistic slack. Most stand-mounted setups need a 3 ft or 6 ft for the controller-to-XP8 hop, plus a 1 ft jumper for adjacent modules. Use 14 ft only when you truly need the reach. Does this carry power? Yes. This is the standard data + power Command Bus cable. Downstream devices on the chain will draw their 12V supply through this cable, so no extra wall adapters are needed for most accessories. Can I chain multiple cables together? You can daisy-chain HYDROS devices, but the total power-carrying chain should stay within ~14 ft. Beyond that, switch to a HYDROS data-only cable for the long segment. What connector does it use? Threaded GX-12 metal connectors on both ends. The collar locks the cable in place and resists drips and salt creep. Is it compatible with both Control 2 and Control 4? Yes. Same connector standard across the entire HYDROS Control product family, including the XP8 outlet bar and all current expansion accessories.
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