Assemble All-in-one Desktop pc (15.6-inch LED/500 GB HDD/4 GB Ram/Intel C2D Processor 3.0GHz/G-31 Motherboard)- Without DVD R/W vs ROLLTOP Assembled Desktop Computer (Win 7, Intel Core 2 Duo, 2.9 GHZ Processor, G31 Motherboard, GB RAM, 500 GB Hard Disk , Wi Fi Adaptor)