Rosewill RCW618 - Manual (Page 8)

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User Manual SATA/IDE to Detachable USB 2.0 Adapter(Support 2.5", 3.5" & 5.25" IDE/SATA Drive) RCW618
3. Plug the power adapter to your ATA/ATAPI/SATA device. Please check a to d as below.
a. 3.5" ATA
b. 2.5" ATA
There is no additional power needed for 2.5” HD.
c. 3.5" SATA
d. 5.25" ATAPI