MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in installation. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure and reliable connections. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they meet stringent military specifications for durability and performance. Suitable for demanding applications, these connectors provide EMI/RFI shielding and are ideal for use in aerospace, defense, and industrial environments.