MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range between -65 °C and 200 °C. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, use M39029 rear release crimp contacts and come in aluminum shells with a choice of plating options including cadmium-free finishes. With gold-plated contacts and a Bayonet coupling system, they ensure reliable conductivity and durability. Suitable for demanding applications, these connectors are ideal for environments requiring resistance to extreme temperatures and environmental factors.