MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts within an insert, offering front and rear wall mounts, jam nut, and box mount receptacles. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes. Made of aluminum, they come with plating options including cadmium-free finishes. These EMI-shielded connectors, with bayonet coupling, are MIL-DTL-38999 II compliant, ensuring reliability in military and industrial settings.