MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing and a wide operating temperature range from -65 °C to 200 °C. Designed for harsh environments, these connectors come in various configurations including front and rear wall mounts, jam nuts, and box mounts. With options for straight, RFI grounding, and 90-degree cable clamp plugs, they accommodate diverse installation needs. Featuring aluminum shells with plating options like cadmium and nickel, these connectors ensure reliable performance. Utilizing M39029 rear release crimp contacts, they are ideal for military and aerospace applications requiring secure and durable electrical connections.