MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility. With straight, RFI grounding, and standard plugs, they accommodate different cable configurations. The connectors, compliant with military specifications, utilize M39029 rear release crimp contacts and come in aluminum shells with plating options including cadmium-free finishes. Suitable for demanding applications, they provide reliable connectivity with a service rating of M and conductivity.