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This 90-degree downward angle USB 3.0 header adapter is specially designed for desktop motherboard internal wiring. It converts straight 19Pin / 20Pin USB headers to a downward right-angle direction, effectively solving cable crowding and bending issues inside compact chassis. Adopting high-quality conductive pins and reinforced circuit board, it maintains stable USB 3.0 data transmission and power supply. Plug-and-play installation, no extra tools or drivers required. Ideal for DIY PC assembly, chassis modification, and motherboard front panel header optimization.