MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, providing robust connectivity for harsh environments. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating different contact sizes. Constructed with aluminum shells and offering multiple plating options, including cadmium-free finishes, they ensure reliable performance while meeting RoHS compliance. Suitable for military and industrial use, these connectors are designed for durability, with environmental sealing for added protection.