Review on 🔌 USB C to Mini USB Adapter, (4-Pack) Type C Female to Mini USB Male Convert Connector - Supports Charge & Data Sync - Compatible with GoPro Hero 3+, PS3 Controller, MP3 Player, Dash Cam, Digital Camera, and More (Black) by Katie Chisholm

I just noticed in the description that they don't work with "OTG devices like memory cards, keyboards etc - they work fine for me maybe it's for mobile phone use but on my desktop i tried them with qisan magicforce 68 keyboard and it works as expected of which worked with the same keyboard i decided to try my luck with trying some adapters as the cables I ordered didn't work and I had some good braided USB C cables. The keyboard works fine with the adapter but the length is too long. You'll probably need a rectangular connector or a very long one short end of usb-c cable so it fits properly with this keyboard, for that reason i'm deducting a star otherwise would be they have been perfect for my use case. I'm still trying to decide if I should revert them to something shorter, but I'm not sure if such an adapter exists.