MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts. Featuring front and rear wall mounting options, as well as jam nut and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, ensure optimal performance in extreme conditions, with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they utilize gold-plated removable crimp contacts for secure connections. The aluminum shells come with electroless nickel coating, providing durability and corrosion resistance. Suitable for applications requiring EMI/RFI shielding, these connectors are essential for military and aerospace systems where reliability is paramount.