MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts and durable environmental sealing. Designed for harsh environments, they feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. These connectors, available in 9 shell sizes and 52 insert arrangements, utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, such as gold and electroless nickel, they ensure reliable conductivity in temperatures ranging from -65 °C to 200 °C. With RoHS compliant finishes available, these military specification connectors are ideal for demanding applications that require ruggedness and durability.