MIL-DTL-38999 Series II connectors offer rugged performance with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offered in multiple plating options, they ensure durability and corrosion resistance. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for demanding applications. RoHS compliant finishes are also available.