MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65°C and 200°C, these connectors offer reliable performance in harsh conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they accommodate different installation needs. With 52 insert arrangements and M39029 rear release crimp contacts, they provide versatility for diverse applications. Constructed with aluminum shells and plated with options like electroless nickel and cadmium-free finishes, they ensure durability and compliance with RoHS standards. Suitable for military and industrial use, these connectors guarantee secure and efficient electrical connections.