Z-PACK M.CODING KEY is an essential accessory for ensuring proper connectivity in high-speed backplane systems. Designed for use with Z-PACK 2mm HM series connectors, this coding key features a distinctive Raspberry Red color and is numbered 3578 for easy identification. Compatible with Type L, Type M, Type A, and Type D connectors, as well as Type D, it helps prevent mismating and signal interference. Each package contains 500 coding keys, making it ideal for large-scale deployment in data and device applications. Please note that this product is not RoHS compliant.