MIL-DTL-38999 Series II connectors, compliant with military specification, offer robust connectivity with up to 128 contacts in an insert. Designed for harsh environments, these connectors feature various mounting options like front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes with 52 insert arrangements, they utilize M39029 rear release crimp contacts, ensuring secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors guarantee reliable performance in temperatures ranging from -65 °C to 200 °C. Suitable for demanding applications, they provide EMI/RFI shielding and 500 mating cycles, making them ideal for aerospace, defense, and industrial use.