Matrix BL0154 Micro-SD Card E-blocks2

The card provides a means of reading and writing data on the SD card as well as a level shift to allow 5V and 3V3 systems to be compatible.
The card also allows detecting the presence of the card through a switch integrated into the card connector.
The micro SD card is inserted by pushing it into the slot with the SD contacts facing downwards.
The SD card is removed from the device by first pushing it inwards to unlock it from the slot before pulling it outwards.