MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations including front and rear wall mounts, jam nuts, and box mounts, these connectors offer versatility in applications. With options for straight, RFI grounding, and 90-degree cable clamp plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they ensure secure and reliable connections. The aluminum shells come with plating choices such as electroless nickel and cadmium finishes, meeting different environmental requirements. RoHS compliant versions are also available, making them suitable for various industries.