HP Compaq Elite 8100 Business PC, Intel i5-2400, 3.1 GHz, 1 TB, Windows 10 Professional, SFF 3 year hardware warranty including U.S. based technical and remote support Intel Core i5 650@3.20GHz, 4GB RAM, 160GB Hard Drive, and a CD-RW/DVD-ROM Combo Drive HP Compaq 8100 Elite Small Form Factor Desktop refurbished by a Microsoft Authorized Refurbisher Loaded with licensed Windows 7 Professional 64-bit Operating System obtained directly from Microsoft