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Professional PCBA-built vertical USB 3.0 adapter converts motherboard 19Pin 20Pin box header into dual standard USB A female ports. Vertical mounting design optimizes limited chassis internal space and avoids wiring congestion. Adopted with high-quality gold-plated contacts and rigid circuit board material to ensure long-term stable high-speed data transmission. Easy to install without complex wiring, perfectly suitable for desktop computer DIY assembly, case refitting and motherboard interface expansion.