Install macOS Sierra 10.12 quickly and easily with our installation USB stick, iMac compatible, MacBook Air, MacBook Pro, Mac mini, Mac Pro. Created directly by Simpletek, this USB allows you to reinstall or update your operating system. Main features: Operating system: macOS Sierra 10.12 Language: Italian (external languages available on quote) Support: USB installation wrench Installation support: Included Compatibility: iMac, MacBook Air, MacBook Pro, Mac mini, Mac Pro * Technical specifications (minim): Compatible Mac Models: consult the Apple site to verify compatibility of your RAM model: 2 GB hard disk space: 8 GB available USB port: USB 2.0 port or higher Important note on startup: This package only includes support for operating system installation. The macOS Sierra 10.12 license is included in your Mac. The product is created directly by us. For Languages is easily changed from system For any doubt or information about booting from USB, please feel free to contact us. * MacBook: end 2009 or newer MacBook Pro: mid 2010 or newer MacBook Air: end 2010 or newer Mac mini: mid 2010 or newer iMac: end 2009 or newer Mac Pro: mid 2010 or newer