What it is A 4way fuse holder block designed for car and boat audio systems. It accommodates 1x0GA 2x4GA inputs and 4x8GA outputs, compatible with US standard AWG power or ground wires for comprehensive circuit protection. Key benefits Protects power audio components from power surges and wiring faults, helping extend the life of your stereo, amps, and other gear. Provides a centralized, reliable fuse protection point for multiple power rails in a single installation. Durable construction with a heatresistant design suitable for demanding automotive and marine environments. Construction and protection Robust zinc alloy body with quality plastic components for longlasting performance in automotive and marine settings. Heatresistant protective cover to shield internal parts from excessive heat and maintain safe operation under electrical loads. Includes 60A fuses for complete overload protection of your audio system components. Compatibility and wiring Inputs: 1 x 0 GA, 2 x 4 GA. Outputs: 4 x 8 GA. Compatible with US standard AWG power or ground wires, enabling flexible and safe wiring for complex systems. Use scenarios Aftermarket car stereo upgrade requiring multiple amplifiers with a single centralized fuse block. Marine audio installation on boats or other marine vessels needing reliable protection for draw systems. Offroad or heavyuse vehicles where power amplifiers demand robust, organized fuse protection. Why this stands out Durable, corrosionresistant construction suited to both automotive and marine environments. Clear, centralized protection for multiamp setups, reducing wiring clutter and risk. Includes essential fuses and a heatresistant cover, emphasizing safety and longevity of expensive audio components.