Advanced electronics that monitor available battery power and adjust the three-speed compressor for greatest efficiency and cooling power distinguish this system. The stainless steel holding plate will refrigerate a box up to 7cu.ft. and it utilizes an air-cooled compressor for easy installation. ASU systems for larger or smaller boxes are available by special order.Chilling Medium: Holding plate Power Requirements: 6A 2 12V DC; 3A @ 24V DC Cooling Capacity: 7cu.ft. Dimensions: Compressor: 12"L x 6"W x 6"D; Holding plate: 14"L x 11"W x 2-1/2"D Weight: 40lb. Plumbing Connections: Compressor: Quick disconnects; Holding plate: 6' precharged copper tubing with quick disconnects Electrical Connections: Hardwires to 12V or 24V DC electrical system Seawater Cooling Required: No Warranty: Five years