My full size SD Card is not detected by my USBC-7IN1 when locked. Why is this?

Last Update: September 1st, 2022
Article ID: 1392160


In some situations full sized SD Cards may not be detected when in the read only or 'locked' position when inserted into a USBC-7IN1. The lock position on full sized SD Cards is not meant to lock access to these cards, it is intended to make the card read only.

Pictured below, a full sized SD Card with the card lock enabled.


At this time the best solution to mitigate this problem is to 'unlock' the SD Card before inserting the card into the USBC-7IN1. We do understand that perhaps this is not a viable solution for you, and if this is the case please reach out to us for further assistance. You can do so by emailing us at, please be sure to describe the problem.

* Please Note: This problem is only known to affect the USBC-7IN1.