Top positive review
works as expected, might want to be careful in what order you plug in the AC adapter
March 24, 2019
Good fit and finish. I tested this on several drives, both 2.5 and 3.5 inch. For the 3.5, I used the power adapter, and for the 2.5, I used it without the power adapter. One nice feature I like for this one is the blue power light, which illuminates when you have a drive plugged in and powered up (either plugged in with the AC adapter for 3.5, or plugged into the USB for 2.5).
Notes: The item says "plug and play, hot-swapping"; however, (being an electrical engineer), I think the best way to connect and power up would be in this order: 1) plug the adapter into the drive, 2) connect the power (for a 3.5 drive), and 3) plug the USB in. Then to disconnect, perform in reverse order. While it might work in a different order, this would most closely resemble how a HDD (hard disk drive) would be powered up in normal operation. Specifically the step you might want to avoid is plugging the adapter to the HDD with the AC adapter plugged in.
Recommendations: Manufacturer, provide specific connection steps for both scenarios (3.5 with AC adapter, 2.5 without).