MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating between -65°C and 200°C, these connectors offer versatility in harsh conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. With options for straight, RFI grounding, and standard plugs, as well as a range of plating choices like gold and electroless nickel, they ensure reliable performance. Constructed with aluminum shells and RoHS compliant finishes, these connectors guarantee durability and environmental responsibility for military and industrial applications.