MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. With an operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Constructed with aluminum shells and offered in multiple plating options, including RoHS compliant finishes, they ensure reliable performance. Suitable for military and industrial use, these connectors provide durable and efficient electrical connections in challenging conditions.