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This 4-port M.2 to SATA 3.0 expansion card adopts M.2 Key M interface design, converting M.2 slot into four independent SATA 3.0 ports with 6Gbps high bandwidth. It effectively expands storage connection capacity, ideal for multi-harddisk assembly, NAS building and desktop storage upgrade. The package includes 4 SATA cables for convenient immediate installation. Stable main control chip ensures smooth data transmission and long-term continuous operation. Compatible with Windows 10 and Windows 11 systems, plug and play without complicated driver setup. Mini compact size saves chassis space, suitable for standard desktops and small host devices.