was created by developer "shimp208" on XDA Developers. It strips everything down to only the essential ADB and Fastboot binaries plus required DLLs. Version 1.4.3 is the most polished stable release of that lightweight project.
While the full Android SDK can exceed 400 MB, this minimal version is typically around 2 MB . minimal adb fastboot v1.4.3 portable
Minimal ADB and Fastboot v1.4.3 Portable: The Lightweight Toolkit for Android Modding was created by developer "shimp208" on XDA Developers
– Many users swear by this specific release because: minimal adb fastboot v1.4.3 portable