Review on USB C to USB Adapter [2 Pack] by JSAUX - USB Type C Male to USB 3.0 Female OTG Cable Thunderbolt3 to USB Adapter - Compatible with MacBook Pro/Air 2019 2018 2017, Samsung Galaxy S20 S20+ Ultra Note 10 S9 S8 by Phillip Brown

I bought them a few months ago. Have used it a few times. Now none works reliably. Sometimes they mount on my phone but cannot transfer large files, covering about a third of the transfer path. Sometimes they don't get in and then I try to turn them around and they register on the phone. Sometimes they won't even mount if you try to use them both ways. I only use them when I want to transfer large files, so I only use them when the phone is still on the table. As such, they have not been unduly bent or stretched.