MIL-DTL-38999 Series II connectors are rugged and reliable, with up to 128 contacts for versatile connectivity. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65°C to 200°C. Featuring various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. Available in 9 shell sizes and 52 insert arrangements, with M39029 rear release crimp contacts, they ensure secure connections. Constructed with aluminum shells and plated with options like electroless nickel and cadmium, they meet RoHS compliance standards. Ideal for military and industrial applications, these connectors guarantee durability and performance in demanding conditions.