MIL-DTL-38999 Series II connectors offer high performance in harsh environments with up to 128 contacts sealed for protection. Operating between -65 °C and 200 °C, these connectors come in various configurations such as front and rear wall mounts, jam nut, and box mounts. Featuring aluminum shells with plating options including cadmium-free finishes, they ensure reliability in critical applications. Utilizing M39029 rear release crimp contacts, these connectors provide secure connections in sizes 22D, 22M, 22, 20, 16, and 12. With EMI/RFI shielding and bayonet coupling, they meet military specifications for durability and performance. Suitable for aerospace, defense, and industrial use, these connectors guarantee efficient signal transmission in demanding environments.