Take control of your vehicle’s electronics with the MSD Solid-State High-Current Relay Block, the ultimate solution for replacing bulky and outdated relay setups. Designed to clean up wiring and deliver high performance in a compact footprint, this solid-state relay module supports four independent 35-amp channels, totaling up to 140 amps of continuous power—perfect for powering electric fans, water pumps, nitrous solenoids, lighting, and more.