# BPI-R2 SATA interface

BPI-R2 support 2 sata interface and onboard power port.

![](/files/-M2HXJvqqK5dyMDwOHtb)

you can use sata line connect your hardisk on BPI-R2.

## Test a SAMSUNG SSD DISK, the Read/Write performance are below:

(1) Read from disk: 230MB/s (command: dd if=/dev/sda of=/dev/zero bs=1M count=10240)

(2) Write to disk: 192MB/s (command: dd if=/dev/zero of=/dev/sda bs=1M count=1024 oflag=direct)

**Note:**

if you use 3.5 big hardisk ,you may need power with outside power. on board power maybe can not support enough current


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