Mac Pro used for music recording. It has scratches and signs of use, but it's still a high-spec machine that can be used. Includes the main unit and power cable. Will be shipped in the Mac Pro box. Processor: 2 x 2.66 GHz 6-Core Intel Xeon Memory: 48GB 1333 MHz DDR3 ECC Graphics: ATI Radeon HD 5870 1024 MB There are four hard drives: SSD 500GB (for OS X 10.11.6 system) SSD 500GB (for OS X 10.6.8 system) HDD 1TB (for data) HDD 160GB (for data) Two operating systems are installed: OS X 10.11.6 El Capitan (clean install) OS X 10.6.8 Snow Leopard (ProTools LE8 specification) Set up for music recording. Digidesign ProTools LE 8 installed. Includes many plugins, including Waves. An interface compatible with ProTools is required to use it. OS X 10.11.6 boots by default. To use OS X 10.6.8, press the power button and immediately hold down the Option key to display the startup disk selection screen.