Important to me was that 2.5-inch hard drives let supply power and can respond simultaneously on the computer and also, the charging of an iPhone.
to the USB hub at the same time I run a wireless mouse and keyboard, an external burner a USB stick, an external card reader and a 2.5-inch hard drive.
all function properly.
A speed test of the USB 2.5 HDD, you can see under the customer images. Test drive is a Samsung S2 Portable 1TB.
I can only recommend this USB hub.
I have withdrawn because he does not recognize of not thorough points sometimes 3.5 inch hard drives with an asterisk (irregular occur)