The MIL-DTL-38999 Series II connectors feature up to 128 contacts within an 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, they offer versatility in connectivity solutions. These connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with multiple plating options, including cadmium-free finishes for RoHS compliance. With removable crimp contacts, bayonet coupling, and gold plating, they ensure reliable electrical connections in demanding applications. Suitable for potting, these connectors, with a shell size of 20 and 41 contacts, are ideal for military and aerospace industries, offering durability and performance in challenging environments.