1. This extension card must support the PM (SATA PORT MULTIPLIER) function of the motherboard or the extension card to recognize 5 hard disks. 2. The main motherboard SATA does not support this function. If it is not supported, only one card can be recognized. 3. You must plug in the SATA or DC2.5 power supply to the expansion card. Package included: 1 x SATA Expansion Card 1 x USB-DC Power Cable
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