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This dual-side USB 3.0 adapter PCBA board converts your motherboard 20Pin or 19Pin internal header into dual USB 3.0 Type-A female ports for convenient interface expansion. Equipped with a clear LED indicator, it intuitively displays power supply and working status in real time. Adopting high-quality PCBA circuit design, it provides stable 5Gbps high-speed data transmission with anti-interference performance. Compact and easy to install, plug and play without extra drivers. Ideal for computer case modification, internal USB port expansion, desktop DIY assembly and upgrading insufficient motherboard USB interfaces.