The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a rugged insert design. These environmentally sealed connectors are built to withstand extreme conditions, with an operating temperature range from -65 °C to 200 °C. Featuring various mounting options including wall mount, jam nut, and box mount receptacles, they provide versatile installation capabilities. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with aluminum shells and available in different plating options, they meet stringent military specifications for durability and performance. Suitable for harsh environments, these connectors are ideal for applications requiring robust and dependable electrical connectivity.