MIL-DTL-38999 Series I connectors offer rugged performance with up to 128 contacts in an insert, featuring front and rear wall mount options, as well as jam nut receptacles. Designed for harsh environments, they boast a wide operating temperature range of -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Crafted with high strength aluminum shells and available in various plating options including cadmium-free finishes, they provide reliable conductivity. With RoHS certification, these connectors are ideal for demanding applications requiring durability and environmental resilience.