How to Identify a 4GB MMC/EEPROM (Rev C) BealgeBone Black


The only way, if there are no stickers is to look at the embedded MMC chip.
This is the largest chip next to the Ethernet Jack, against the P8 header.

The Kingston chip appears to the the 4G which was the Rev C. Model KE4CN2H5A.

What is Not 4G (earlier board revs)
(M with a circle logo): 3Da18 JW896