The MIL-DTL-38999 Series II connectors offer high performance in 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 ideal for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount, they provide versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering multiple plating options, including RoHS certified finishes, they ensure durability and compliance with environmental standards. Suitable for military and industrial use, these connectors guarantee secure and efficient electrical connectivity in critical operations.