This will attach to any of the FatShark (or other product) power inputs that use a 2.1mm barrel connector. Prevent your cables from fires due to runaway power supply of RC packs (which don’t have current limiting safety circuits) if cables are misconnected or accidentally shorted. The Power Shield has reverse voltage protection and a 2A polyfuse (self resetting). The PCB comes prewired with a Fat Shark compatible barrel connector and a bare pad to solder on the appropriate battery connector. Great when powering those sensitive electronics with high discharge lipos!