diff --git a/content/cloud/iot-cloud/tutorials/01.iot-cloud-getting-started/iot-cloud-getting-started.md b/content/cloud/iot-cloud/tutorials/01.iot-cloud-getting-started/iot-cloud-getting-started.md
index e90a62077e..eb3ec8b285 100644
--- a/content/cloud/iot-cloud/tutorials/01.iot-cloud-getting-started/iot-cloud-getting-started.md
+++ b/content/cloud/iot-cloud/tutorials/01.iot-cloud-getting-started/iot-cloud-getting-started.md
@@ -49,6 +49,8 @@ To use the Arduino IoT Cloud, a **cloud compatible board** is required. You can
 
 ### Wi-Fi
 
+***Official Arduino boards only supports the 2.4GHz frequency band for transmitting data.***
+
 The following boards connect to the Arduino IoT Cloud via Wi-Fi.
 
 - [MKR 1000 WiFi](https://store.arduino.cc/arduino-mkr1000-wifi)
diff --git a/content/cloud/iot-cloud/tutorials/02.technical-reference/iot-cloud-tech-ref.md b/content/cloud/iot-cloud/tutorials/02.technical-reference/iot-cloud-tech-ref.md
index e9b2b1b88f..ac54189aed 100644
--- a/content/cloud/iot-cloud/tutorials/02.technical-reference/iot-cloud-tech-ref.md
+++ b/content/cloud/iot-cloud/tutorials/02.technical-reference/iot-cloud-tech-ref.md
@@ -17,6 +17,8 @@ To use the Arduino IoT Cloud, a **cloud compatible board** is required. You can
 
 ### Wi-Fi
 
+***Official Arduino boards only supports the 2.4GHz frequency band for transmitting data.***
+
 The following boards connect to the Arduino IoT Cloud via Wi-Fi.
 
 - [MKR 1000 WiFi](https://store.arduino.cc/arduino-mkr1000-wifi)