It's fit for purpose, however has a large issue
The device works when plugged in to the PC with or without power. In order to power spinning harddrives or other power hungry devices this needs to be plugged in, however will comfortably serve mouse, keyboard, printer, game controller etc without power.
The issue is that when powered and plugged to the USB port of the computer it is backfeeding 5v DC IN to the USB, which is against USB spec. For most PCs this /should/ not be an issue however Laptops, specifically apple macs may die because of this.
I feel like it is mislabelled, it is a powered USB hub for devices yes (chargers for example) OR it is a unpowered USB hub / extender for PCs, not both. At least I would not use it that way.
tl:dr Don't use the power adapter when plugging it in to a PC.
Verified purchase: YesCondition: New