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 options, jam nut, and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, are suitable for demanding applications with an operating temperature range from -65°C to 200°C. Constructed with aluminum shells and available in various plating options, including RoHS certified finishes, they provide reliable connectivity with options for gold-plated contacts. With a focus on environmental sealing and durability, these connectors are ideal for use in critical systems requiring secure and robust electrical connections.