Y05-U22 Series looks like just a USB-microUSB cable, but supporting three functions in a small cable; 
1. USB2.0-microSDXC Reader for PC,  
2. USB2.0 OTG-microSDXC Reader for smart phone, 
3. USB2.0-Link/Charge Cable between PC and Smart Phone.

A single cable works as not only using USB-microUSB cable between PC and smart phone, but also the cable itself will be microSD card reader for both PC and smart phone.

Y05-U22 Series (U2OTGSD)

Y05-U22 Series  (USB2.0/OTG-microSDXC Reader + USB-microUSB Link/Charger 3in1 Cable) x1