Seller: tb-consulting (746) 100%, Location: Baldwin City, Kansas, Ships to: US, Item: 303451427812 Full El Capitan 10.11 installation program on a bootable USB 3.0 SanDisk flash drive. Everything you need for the install is on the flash drive. No need for a slow download or even an internet connection. Instructions are included and skilled tech support is available should you have questions. If you are unsure if your Mac can support El Capitan please feel free to contact me for guidance. Note - the flash drive only works on Macs. This will not work on a PC - even in a virtual environment. eBay Notice: This item does not infringe on any eBay listing policies or copyright trademarks.This USB flash drive is intended for repairs and recovery installs and does not include a license, product key or COA. The software is freely available from the App Store.