The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connectors utilize M39029 rear release crimp contacts, ensuring secure connections. Constructed with aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide durability and reliability. Suitable for military and industrial use, these connectors are resistant to environmental factors, making them a dependable choice for critical applications.