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 environmentally sealed for reliability. Available in various mounting styles, including wall mount and jam nut receptacles, they offer flexibility in installation. The connectors use M39029 rear release crimp contacts, ensuring secure connections. Constructed with aluminum shells and offering multiple plating options, such as gold and electroless nickel, they provide durability and performance. Suitable for military and industrial applications, these connectors meet stringent quality standards, including RoHS compliance.