MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65 °C to 200 °C, these connectors are versatile and durable. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. The connectors come in aluminum shells with a choice of plating options, ensuring corrosion resistance. Utilizing M39029 rear release crimp contacts, they provide secure connections in applications requiring high reliability. RoHS compliant finishes are available, making them environmentally friendly. Suitable for military and industrial use, these connectors meet the stringent MIL-DTL-38999 II standards for quality and performance.