Hi there,
I was worried about type C as well. Luckily this 8 EURO pseudo-hub works for me.. I use keyboard and mouse with it. USB flash was recognized as well, but I haven’t got my hands on unpowered USB HDD yet. Unfortunately it is not really able to charge the tablet, when in use it slowly discharges.. :/ But that may be because of the chuwi charger. The 8GB micro SD works ok for me, I am waiting for 64 one now.
My only problem so far is the HDMI output, both my adapters block the USB-C port which is very annoying. Any tips?