The MIL-DTL-38999 Series II connectors offer high performance in harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65°C to 200°C, these connectors ensure reliable connectivity in demanding conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options including electroless nickel and cadmium finishes, they meet stringent military specifications. Designed for durability, these connectors feature gold-plated Removable Crimp Contacts, ensuring optimal conductivity over 500 mating cycles. Suitable for applications requiring environmental resistance, the MIL-DTL-38999 Series II connectors are a reliable choice for military and industrial projects.