MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer versatility and reliability. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells, they offer durability and are plated with options like cadmium and electroless nickel. RoHS compliant finishes ensure environmental sustainability. Perfect for military and industrial applications, these connectors guarantee secure and efficient electrical connections in challenging conditions.