“I bought this 7 usb hub to use with my Raspberry pi 3B because the you can't put 2 usb sticks on together with a wifi plug I use for my keyboard. This does the job great I have the 2 usb sticks in all the time and I can use it to recharge my little keyboard as well.”
“Comes with a power supply and a USB type B cable to connect to the raspberry (I believe the other ports don't provide the anti-backfeed protection). Can output up to 2A. Dunno if this is just a recommendation or if there is a built-in limitator.”