magnet:?xt=urn:btih:1d8541a75625a8415bcfddd21699c696b1dd8e35&xt=urn:md5:cf14cda1df0b840c5feb7c25fce077c0&xl=468019&dn=qtserialport-opensource-src-5.4.2.zip&as=https://download.qt.io/new_archive/qt/5.4/5.4.2/submodules/qtserialport-opensource-src-5.4.2.zip&tr=http://bt.qt-project.org:6969/announce