Review on Enhance Your Raspberry Pi Zero Experience with MakerSpot's 4-Port Stackable USB Hub HAT (Camera Connector, Bluetooth & WiFi Supported) by Dan Quiceno

great design, great product, great quality. Uses zero GPIO pins, leaving the bus free for A/D converters or whatever your heart desires. Assembled in less than 5 minutes. Only thing that could be better would be if it had an audio interface then it would be instant streaming radio for the masses. Much easier to work with than an external USB hub and so compact. I've bought two so far and both are great.