MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options such as front and 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 for reliable connections. With a wide range of plating options, including RoHS compliant finishes, these connectors ensure durability and longevity. Operating in temperatures from -65 °C to 200 °C, they are ideal for demanding applications requiring secure and efficient electrical transmission.