magnet:?xt=urn:btih:2131dce3ce4faff0306003bc7ef3a716df79cb1f&xt=urn:md5:ea013e7f81f04dca58f017d08992646b&xl=40&dn=5.12.4-0-201906140149qtserialbus-Windows-Windows_7-Mingw73-Windows-Windows_7-X86.7z.sha1&as=https://download.qt.io/online/qtsdkrepository/windows_x86/desktop/qt5_5124/qt.qt5.5124.win32_mingw73/5.12.4-0-201906140149qtserialbus-Windows-Windows_7-Mingw73-Windows-Windows_7-X86.7z.sha1&tr=http://bt.qt-project.org:6969/announce