Comment by yjftsjthsd-h

2 years ago

I was under the impression that a lot of off-brand USB devices didn't use the USB logo specifically to get around certification requirements. Basically, they just aren't advertising adherence to a standard. No idea about NVMe or BT.

3 comments

yjftsjthsd-h

adhesive_wombat 2 years ago

The USB trident logo doesn't need certification. The other, usually coloured, logos do need certification.

https://ftdichip.com/wp-content/uploads/2020/08/TN_114_USB-D...

https://www.usb.org/sites/default/files/usb-if_original_logo...

vineyardmike 2 years ago

I’ve similarly seen a lot of “TF card reader slots” instead of “micro SD card” slots.

yjftsjthsd-h 2 years ago

Actually, I think that one has technical merit - the SD card spec includes non-storage IO - https://en.wikipedia.org/wiki/SD_card#SDIO_cards - that isn't supported by slots that only care about storage. At least, that's my understanding of the situation.