QITDA combo USB3.0 + USB2.0 Type A female connector adopts 90° horizontal DIP integrated stacked combined structure with stainless steel full shielding shell, integrating high-speed USB3.0 (5Gbps) and standard USB2.0 (480Mbps) ports in one housing to save massive PCB layout space. Stainless steel shell features superior corrosion resistance, high hardness and stable EMI shielding performance to block external signal interference. Blue plastic insulator for USB3.0 and black insulator for USB2.0 distinguish transmission versions clearly; all contact terminals are copper alloy with gold plating for stable power & signal output, great anti-oxidation and long plug cycle life. Horizontal DIP through-hole pin design matches wave soldering automated PCB assembly flow. Widely used for multi-port USB hubs, industrial control equipment, docking stations, PC peripherals and consumer electronic devices. Multiple customized stacking layouts and pin structures are optional; all products comply with RoHS & ISO9001 quality certification standards.