The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts, designed for harsh environments. Featuring a wide operating temperature range from -65°C to 200°C, these circular connectors are environmentally sealed for reliable performance. Available in various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, they cater to diverse application needs. With aluminum shells and a choice of plating options including gold and electroless nickel, these connectors ensure durability and conductivity. Compliant with military specifications, they are ideal for demanding industrial and aerospace environments requiring secure, high-speed data transmission.