The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front and rear wall mount, jam nut, and box mount options, these connectors offer versatility. Operating between -65 °C and 200 °C, they are environmentally sealed for reliable performance. Available in various shell sizes and insert arrangements, they utilize M39029 crimp contacts for secure connections. Constructed with aluminum shells and plated in options such as cadmium and nickel, these connectors meet RoHS requirements. Perfect for military and industrial applications, they provide EMI/RFI shielding and are designed for durability with a service rating of II.