The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering secure environmental sealing. With an operating temperature range of -65°C to 200°C, these connectors are durable and reliable. Available in various receptacle types like front wall mount, rear wall mount, and jam nut, they cater to different mounting needs. The connectors come in aluminum shells with options for plating finishes, including cadmium-free choices. Utilizing M39029 rear release crimp contacts, they ensure efficient and secure connections. Whether for military or industrial applications, these connectors provide high performance and longevity, meeting stringent reliability standards.