The MIL-DTL-38999 Series II connectors are designed for harsh environments, boasting up to 128 contacts in an insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they cater to diverse installation needs. Featuring aluminum shells with plating options including cadmium-free finishes, they ensure durability and compliance with environmental regulations. The connectors utilize M39029 rear release crimp contacts, providing secure connections. With their EMI/RFI shielding and bayonet coupling, they are ideal for military and aerospace applications, guaranteeing high performance and longevity.