Fujitsu ESPRIMO D550/B CPU: Intel Core2 Quad Q8200 RAM: 4GB (2GB x 2) PC3-10600 HDD: None Overall, this product is in relatively good condition. I have confirmed that it boots to the BIOS. Originally equipped with a Core2 Duo, it has been replaced with a Core2 Quad. Windows 7 Pro and Windows 10 Home product key stickers are affixed. I have not confirmed whether they are usable. The item will be shipped as the main unit only. Please refer to the manufacturer's website for detailed specifications. https://direct.jp.fujitsu.com/biz-ui6183.html