MIL-DTL-38999 Series II connectors offer robust 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 operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they ensure durability and performance. Suitable for military and industrial use, these connectors provide secure and efficient electrical connections in challenging conditions.