> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/banana-pi-bpi-r2-open-source-smart-router/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bananapi.gitbook.io/banana-pi-bpi-r2-open-source-smart-router/chapter1/bpi-r2-sata-interface.md).

# 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