diff --git a/README.md b/README.md
index b1382d9..994f209 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,9 @@ BOM:
 - DS18B20 (as I already have it)
 - Heaters x2 (https://aliexpress.ru/item/1005004051777634.html)
 - Mosfet boards x5 (https://aliexpress.ru/item/1005002307486977.html)
+- DC4010 Centrifugal Fan (https://aliexpress.ru/item/1005003432338785.html)
+
+Optional:
 - I2C 0.96" OLED Display (https://aliexpress.ru/item/1005004860363043.html)
 - Rotary encoder (https://aliexpress.ru/item/1005001580457385.html)