The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering secure environmental sealing. With an operating temperature range from -65 °C to 200 °C, these connectors are versatile and durable. Available in various mount types such as front wall, rear wall, jam nut, and box mount receptacles, they cater to different installation needs. The aluminum shells come with multiple plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, they ensure reliable connections in applications requiring high performance. Suitable for military and industrial use, these connectors are ideal for applications where ruggedness and reliability are essential.