MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, featuring environmental sealing for reliable performance in harsh conditions. Designed for a wide temperature range from -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, these connectors guarantee durability and conductivity. Meeting military specification MIL-DTL-38999 II, they are ideal for applications requiring high reliability in demanding environments.