MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a rugged, environmentally sealed design. Ideal for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, they ensure reliable functionality in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering various plating options, including cadmium-free finishes, these connectors meet stringent military specifications. The RoHS compliant design further enhances their environmental credentials, making them a versatile choice for demanding applications.