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This 1.64-foot internal USB 3.0 20-pin male to male extension cable is designed for desktop PC motherboard internal header expansion. It effectively extends the short original mainboard 20Pin USB3 wire to smoothly connect chassis front USB3 ports, solving insufficient wire length during PC assembly or chassis modification. Adopting reliable shielding construction, the cable suppresses internal case electromagnetic interference to maintain stable high-speed USB3 data performance. Compatible with most mainstream ATX, MATX and ITX motherboards equipped with standard USB3 20Pin internal headers. Perfect for DIY PC building, case upgrade and internal wiring arrangement for desktop workstations and gaming computers.