HP Business Class desktop computers with an Intel Core i7 processor at 3.4GHZ, 4GB RAM, and a 256GB SSD hard drive. The motherboard has 4 RAM slots, 3 full-length PCI expansion slots, one PCI Express x1 slot, and two PCI Express x16 graphics slots. There is also the possibility to add 3 HDDs of 1TB each, and two SSDs. The operating system is Linux Ubuntu edition. The price includes the case with a 19-inch monitor, mouse, keyboard, and all connection cables. Brand: HP Processor Type: Intel Core i7 RAM Size: 8 GB Storage Type: HDD + SSD Graphics Card: Integrated Operating System: Linux