for ODROID-C0 / C1 / C1+
Pre-installed Ubuntu 14.04 or latest version. Ready to run out of box
eMMC Version 5.0 interface or higher version from Samsung. JEDEC/MMCA version 5.0 : HS400 interface with 8bit DDR mode. Note! ODROID-C1 / C1+ / C0 host supports eMMC version 4.5 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
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Schematics : http://dn.odroid.com/eMMCModule/
eMMC Module Reader is included
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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.
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More about the eMMC Module : http://odroid.com/dokuwiki/doku.php?id=en:emmc_reference_chart |
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
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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 |
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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. |