MicroSD UHS-1 XU4 Linux
Manufacturer Part Number : Sandisk SDSDQAD-08G/16G
Interface : UHS-1 SDR50
More reliable MLC NAND memory inside
Sequential Write speed : 10MB/sec
Sequential Read speed : 40MB/sec
Pre-installed Ubuntu16.04 or latest version.
Ready to run out of the box
You can boot from a MicroSD card or an eMMC module. The MicroSD interface supports the higher performance UHS-1 mode as well.
File access of a 512MB file (read/write) on three different storage options shows distinct performance differences.
The eMMC 5.0 storage is ~7x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card is ~2x faster than the MicroSD Class-10 card in read tests. The MicroSD UHS-1 card provides a great low-cost option for many applications!
sudo dd if=/dev/zero of=$(mount-path)/test oflag=direct bs=8M count=64
sudo dd if=$(mount-path)/test of=/dev/null iflag=direct bs=8M
|Write speed (MB/s)||8.5||10.8||39.3|
|Read speed (MB/s)||18.9||35.9||140|