MIL-DTL-38999 Series II connectors offer rugged reliability with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they accommodate diverse applications. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure secure connectivity. The aluminum shells come in different plating options, meeting RoHS compliance standards. Operating between -65°C and 200°C, they guarantee performance in extreme conditions, making them ideal for military and industrial use.