32GB eMMC Module C2
* Get the eMMC Module Reader (sold separately $1.50)
eMMC Module C2 Android & Linux
Pre-installed Android OS or pre-installed Ubuntu OS
Ready to run out of the box
eMMC Version 5.0 interface or higher version from Samsung.
JEDEC/MMCA version 5.0 : HS400 interface with 8bit DDR mode.
The eMMC chipset is only compatible with Amlogic S905 and S805 series(ODROID-C1+ / C0 / C2)
This eMMC chipset is not compatible with ODROID-XU4 / XU3 / U3 / U2 / X series
You need the above eMMC Module Reader to update the OS of the eMMC Module. Transcend USB multi-slot SD Card reader in the below picture is not included.
More about the eMMC Module : https://wiki.odroid.com/accessory/emmc/emmc
Storage I/O comparison
To obtain the results in the storage I/O comparison graph, type the following lines at a command prompt. The first command tests the write speed, and the second command tests the read speed:
$ dd if=/dev/zero of=test.tmp oflag=direct bs=500K count=1024
$ dd if=test.tmp of=/dev/null iflag=direct bs=500K count=1024
|Media access performance||RPi2 Model B||ODROID-C1+|
|eMMC Read (MB/s)||NA||62.2|
|eMMC Write (MB/s)||NA||25.1|
|MicroSD UHS-1 Read (MB/s)||19.2||32.5|
|MicroSD UHS-1 Write (MB/s)||13.1||14.2|
If you use the eMMC storage, you can get about two to three times faster storage I/O read performance. However, an affordable microSD UHS-1 card can still achieve reasonably fast speeds thanks to the advanced SD 3.01 host controller in the S805 processor. The MicroSD card read performance on C1+ is still about 1.7 times faster then RPi if you use the UHS-1 memory card.
This is wrong. You can find the eMMC Module connector just beside the microSD Card slot.