HP De-Branded Slimline Pentium Dual-Core E5800 3.2GHz 2GB 750GB DVD&plusmn;RW DL No Operating System HP De-Branded Slimline Pentium Dual-Core 3.2 GHz Desktop PC General Features: Slimline design No Operating System! Intel Pentium Dual-Core E5800 3.2 GHz processor 2 GB DDR3 RAM (Supports up to 4 GB) 750 GB SATA hard drive SuperMulti DVD RW DL SATA drive with LightScribe Technology No floppy drive Integrated graphics Integrated high definition audio