diff --git a/README.md b/README.md
index 9381de4..e34a119 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 ## Device preparation
 
+### Tested for Tinkerboard S and Tinkerboard S R2.0
+
 1. Install OS [Armbian 24.11 Bookworm](https://download.csec.ba/tinkerboard/Armbian_24.11.1.img.xz). During post installation process create user canary. You need to connect device to monitor.
 
 2. Update and upgrade