magnet:?xt=urn:btih:589bfe707199b0b84c179fa0bf61ff071bb822a9&xt=urn:md5:d6266c744db1df11333ed6dd95c4c741&xl=412797&dn=qtserialport-opensource-src-5.3.1.zip&as=https://download.qt.io/new_archive/qt/5.3/5.3.1/submodules/qtserialport-opensource-src-5.3.1.zip&tr=http://bt.qt-project.org:6969/announce