Problem: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.Solution: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 support@plugable.com, please be sure to describe the problem.* Please Note: This problem is only known to affect the USBC-7IN1.