HP EliteDesk 800 TWR, i3-4130, 4GB memory, 500GB hard drive, Intel HD Garphics 4400, DVD+-RW, Win8.1 with downgrade to Win7 Pro, OPK 13, Cyberlink, HP Client Security suite, embedded TPM, DTS Auido, 2 PS/2 port, one Serial Port, Three indepent display support standard (1 VGA and 2 Displayports 1.2), 3-3-3 waranty