Kindly refer image gallery for packaging, system comaptibilty list, technical support, warranty, feedback and other details. This listing includes macOS bootable USB pen drive which is capable of recover, repair, upgrade or reinstall of macOS High Sierra for your Mac system. The macOS Bootable USB works only on MacBook, MacBook Pro, MacBook Air, Mac Mini, iMac, iMac Pro and Mac Pro. The macOS bootable pen drive will NOT work on WINDOWS PC or LAPTOP. If you insert this bootable pen drive in Windows system, you will get format error message. So, kindly do not purchase this product if you don't have a Mac system. macOS High Sierra (version 10.13) is the fourteenth major release of macOS, for Macintosh computers. The name "High Sierra" refers to the High Sierra region in California. As with Snow Leopard, Mountain Lion and El Capitan, the name also alludes to its status as a refinement of its predecessor, focused on performance improvements and technical updates rather than user features. Among the apps with notable changes are Photos and Safari.