The MIL-DTL-38999 Series I connectors offer robust performance with up to 128 contacts in an insert, ideal for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure connectivity. Operating efficiently between -65 °C and 200 °C, these connectors meet stringent military specifications. Built with high-strength aluminum shells and various plating choices including cadmium-free finishes, they guarantee durability. Utilizing M39029 rear release crimp contacts in multiple sizes, they provide flexibility in applications. With a mating type of bayonet and a contact style of pin, these connectors are reliable for 500 mating cycles. Their environmental resistance and conductive nature make them suitable for a wide range of industries.