The 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, including front and rear wall mount, jam nut, and box mount receptacles. Available in aluminum shells with a choice of plating finishes, they ensure reliable operation in temperatures ranging from -65°C to 200°C. Utilizing M39029 rear release crimp contacts, these connectors come in 52 insert arrangements, catering to diverse application needs. With a focus on durability, they are RoHS compliant and offer long-lasting performance, making them ideal for military and industrial applications.