MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mount types like front wall, rear wall, and jam nut, these connectors offer versatility. With options for straight, RFI grounding, and standard plugs, they come in 9 shell sizes and 52 insert arrangements, accommodating different needs. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable connectivity. Constructed with aluminum shells and offering plating options such as cadmium and electroless nickel, they meet diverse requirements. Suitable for military and industrial applications, these connectors guarantee durability and performance under demanding conditions.