Recover your data, repair your mac using the Mac Repair USB. Features and Qualities USB/USB-C Dual Connector Bootable Stick: compatible with most models, old and new, laptop, desktop or server mac computers. Included bootable installers: macOS 12 Monterey, macOS 10.15 Catalina, macOS 10.14 Mojave. Running into Issues? We typically respond within 24 hours to assist you with any problems. Supports majority of older and new macs. Bring your old mac to life: Revitalize your older mac computers by upgrading or doing a clean instal of the macOS operating system, giving your Mac a new lease on life. No internet required: Does not require an internet connection for running and installation. A solution to such errors/issues: mac is stuck on loading bar screen, mac starts up to a blank screen, folder with flashing question mark, circle with a line through it, globe icon with exclamation point mark in a triangle