MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts in a sealed insert. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and offering a range of plating options, these connectors ensure durability and performance. With a wide operating temperature range from -65°C to 200°C, they are suitable for demanding applications. The straight plug configuration with removable crimp contacts, gold plating, and EMI/RFI shielding complies with military specification MIL-DTL-38999 II, making them ideal for aerospace, defense, and industrial use.