MIL-DTL-38999 Series II connectors are designed for demanding environments, with up to 128 contacts housed in a rugged insert. Featuring front and rear wall mount options, as well as jam nut and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, ensure reliable performance in extreme conditions, with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and plated with options like electroless nickel and cadmium olive drab, they provide enhanced durability. With RoHS compliance for cadmium-free finishes, these connectors are ideal for applications requiring high reliability and environmental sealing.