Joiot 4-port mini compact usb 3.0 data hub
This is a usb 3.0 hub, and as such, it has a higher data transfer rate than usb 2.0/2.1. it is also backwards compatible with usb 2.0/2.1 devices. this hub was used to back up several pcs to external usb hard drives. the hub itself has an input for a power adapter, but none is supplied with the hub. it has four usb ports, which i would consider the minimum that a proper hub should supply. the construction of the hub seems to indicate that it should hold up to normal wear and tear. i have had the experience of a usb hub falling apart after several months of usage in the past; that does not appear to be the case in this instance. this should be a good hub to keep in a case or bag with a laptop/notebook, tablet, or other mobile device that uses the standard usb "a" connectors. i received a discount for my honest and unbiased review.