When do I need to use the DC-5V power cable?

The power cable is only necessary in cases of inadequate power supply or when used with devices providing poor power output. Most models and usage scenarios do not require the power cable.

Why is my hard drive read/write speed slow?

Why is my hard drive read/write speed slow?

Slow hard drive read/write speeds may vary depending on host devices, interfaces, usage conditions, and other factors. To achieve maximum performance, always use a USB 3.2 Gen 1×1 or later interface.

Why is my hard drive's actual capacity different from the advertised capacity?

Different operating systems calculate hard drive capacity differently than manufacturers. For example:

Windows systems use binary calculations (1 TB = 1024 GB)

In Windows systems:

2 TB ≈ 1862 GB, 1 TB ≈ 931 GB, 750 GB ≈ 698 GB, 500 GB ≈ 465 GB