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This M.2 to dual SATA expansion card adopts professional JMB582 control chip, features B+M key interface and fits 2242 size M.2 slot perfectly. It can easily expand two extra SATA 3.0 ports on your motherboard, allowing you to connect additional HDD, SSD and optical drives. It supports 6Gbps high-speed data transmission with stable running performance, no lag or signal loss. Simple installation without complicated driver settings, greatly upgrade computer storage expandability, ideal for DIY hardware upgrade, office computer and small server storage expansion.