diff --git a/docs_source_files/content/support_packages/chrome_devtools.en.md b/docs_source_files/content/support_packages/chrome_devtools.en.md
index b05551d8a74e..d45bca9cd49c 100644
--- a/docs_source_files/content/support_packages/chrome_devtools.en.md
+++ b/docs_source_files/content/support_packages/chrome_devtools.en.md
@@ -343,7 +343,54 @@ public void deviceSimulationTest() {
 # Please raise a PR to add code sample
 {{< / code-panel >}}
 {{< code-panel language="csharp" >}}
-# Please raise a PR to add code sample
+  
+using OpenQA.Selenium;
+using OpenQA.Selenium.Chrome;
+using OpenQA.Selenium.DevTools;
+using System.Threading.Tasks;
+using OpenQA.Selenium.DevTools.V91.Emulation;
+using WebDriverManager;
+using WebDriverManager.DriverConfigs.Impl;
+using DevToolsSessionDomains = OpenQA.Selenium.DevTools.V91.DevToolsSessionDomains;
+
+namespace Selenium4Sample
+{
+    public class ExampleDevice
+    {
+
+        protected IDevToolsSession session;
+        protected IWebDriver driver;
+        protected DevToolsSessionDomains devToolsSession;
+
+     
+        public async Task DeviceModeTest()
+        {
+            new DriverManager().SetUpDriver(new ChromeConfig());
+            ChromeOptions chromeOptions = new ChromeOptions();
+            //Set ChromeDriver
+            driver = new ChromeDriver();
+            //Get DevTools
+            IDevTools devTools = driver as IDevTools;
+            //DevTools Session
+            session = devTools.GetDevToolsSession();
+
+            var deviceModeSetting = new SetDeviceMetricsOverrideCommandSettings();
+            deviceModeSetting.Width = 600;
+            deviceModeSetting.Height = 1000;
+            deviceModeSetting.Mobile = true;
+            deviceModeSetting.DeviceScaleFactor = 50;
+
+
+            await session
+                .GetVersionSpecificDomains<OpenQA.Selenium.DevTools.V91.DevToolsSessionDomains>()
+                .Emulation
+                .SetDeviceMetricsOverride(deviceModeSetting);
+
+            driver.Url = "https://www.netmarble.net/";
+        }
+
+    }
+}
 {{< / code-panel >}}
 {{< code-panel language="ruby" >}}
 # Please raise a PR to add code sample