MIL-DTL-38999 Series II connectors offer high performance with up to 128 contacts in an environmentally sealed insert. Operating between -65 °C and 200 °C, these connectors come in various configurations including front wall mount, 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 and feature aluminum shells with multiple plating options. With a straight plug design and EMI/RFI shielding, they ensure reliable connectivity in harsh environments. Suitable for military applications, these connectors guarantee durability and functionality with RoHS compliant finishes.