MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts in an insert. Featuring front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With a wide operating temperature range of -65°C to 200°C and environmental sealing, they ensure optimal performance in demanding conditions. Available in various shell sizes and insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide durability and corrosion resistance. The straight plug design, with options for RFI grounding, is ideal for military and aerospace applications.