Attention: USA Orders Only... We don't ship out the USA if you order anyway you will be refunded. We are very sorry.... Catalina 10.15 OS X Preloaded on Sata HDD USA Orders Only.... You are buying Preloaded Sata HDD No charge is being made for the system software itself. The price is for a Used HDD and the time to pre-install the OSX on it, including sales support and postage/packaging. This Apple OSX software is FREE to download from the Apple (App store) using the App Store program supplied by Apple. Basic knowledge about Mac/Pc is needed. Before purchasing, please do check your System Requirements! Catalina 10.15 OS X is compatible with: General requirements Supported Models Your Computer Must Have Slot For 2.5 Sata HDD even if your Model is Compatible MacBook (Early 2015 or newer) MacBook Air (Mid 2012 or newer) MacBook Pro (Mid 2012 or newer) Mac mini (Late 2012 or newer) iMac (Late 2012 or newer) iMac Pro (2017) Mac Pro (Late 2013, plus mid-2010 and mid-2012 models with recommended Metal-capable GPU) You will not receive a Printed HDD or Box to keep cost minimum. This is shown simply for illustration purposes only. Items contained on this HDD are under the terms of the GNU License, the GNU Lesser General Public Licences (LPGL) or the Mozilla Public Licence This item does not infringe any copyright, trade mark or any of listing policies. This HDD does not include any license or Certificate of Authenticity