diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fe21e8..afc3d2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.65] - 2024-04-07
+### Added
+- Added option to configure the buffersize for the internal downloader.
+
 ## [2.0.64] - 2024-04-06
 ### Added
 - Add log level Verbose and add logging for the internal downloader, only works when both log levels are set to Verbose.
diff --git a/server/RdtClient.Data/Models/Internal/DbSettings.cs b/server/RdtClient.Data/Models/Internal/DbSettings.cs
index 2a39770..b58ca4e 100644
--- a/server/RdtClient.Data/Models/Internal/DbSettings.cs
+++ b/server/RdtClient.Data/Models/Internal/DbSettings.cs
@@ -103,6 +103,10 @@ public class DbSettingsDownloadClient
     [Description("Split the downloaded file in this amount of chunks.")]
     public Int32 ChunkCount { get; set; } = 8;
 
+    [DisplayName("Buffer Size")]
+    [Description("Buffersize in bytes for the internal downloader, used to read data and write it to disk.")]
+    public Int32 BufferSize { get; set; } = 1024 * 1024;
+
     [DisplayName("Connection Timeout (only used for the Internal Downloader)")]
     [Description("Timeout in milliseconds before the downloader times out.")]
     public Int32 Timeout { get; set; } = 5000;
diff --git a/server/RdtClient.Service/Services/Downloaders/InternalDownloader.cs b/server/RdtClient.Service/Services/Downloaders/InternalDownloader.cs
index 5d791a1..98cc1ba 100644
--- a/server/RdtClient.Service/Services/Downloaders/InternalDownloader.cs
+++ b/server/RdtClient.Service/Services/Downloaders/InternalDownloader.cs
@@ -118,6 +118,13 @@ public class InternalDownloader : IDownloader
 
     private void SetSettings()
     {
+        var settingBufferSize = Settings.Get.DownloadClient.BufferSize;
+
+        if (settingBufferSize <= 4096)
+        {
+            settingBufferSize = 4096;
+        }
+
         var settingDownloadParallelCount = Settings.Get.DownloadClient.ParallelCount;
 
         if (settingDownloadParallelCount <= 0)
@@ -141,6 +148,7 @@ public class InternalDownloader : IDownloader
             settingDownloadTimeout = 1000;
         }
 
+        _downloadConfiguration.BufferSize = settingBufferSize;
         _downloadConfiguration.LogLevel = (Int32)Settings.Get.DownloadClient.LogLevel;
         _downloadConfiguration.Parallel = settingDownloadParallelCount;
         _downloadConfiguration.MaximumBytesPerSecond = settingDownloadMaxSpeed;