Are you in the search of an appropriate answer of why sd card not showing on Macbook pro ? If yes then you exactly arrived at the correct destination. Several other users of Macboook pro is also going thorough the same situation of sd card not showing on Macbook pro. Well, there are many factors behind this issue. It would be due to improper connection is sd card and the computer. If any severe virus is already present in your Macbook pro and if you insert any sd card then it will infect the sd card and causes loss of all data from sd card which further indicates sd card not showing on Macbook pro. It is equally true that it might happen when the sd card is already corrupted or its data are deleted. One of the issue behind the sd card not showing on Macbook pro is problem in the usb drive. Usually in this moment the users gets too much worried and thinking about the lost data. Let me tell you that in any situation of data loss from Mac computers you can take help of a well featured third party software. This software is named as Mac data recovery software.