HP Pavilion Media Center a1350n Desktop PC (AMD Athlon 64 X 2 Dual Core Processor 4200+, 1 GB RAM, (Discontinued by Manufacturer) AMD Athlon 64 X2 (T) 4200+ 2.2 GHz; 2000 MT/s (mega transfers/second); Socket 939 Memory Installed 1 GB (2 x 512) / Maximum allowed 4 GB (4 x 1 GB) requires the replacement of the installed 512 MB DIMMs 250GB SATA Hard Drive up to 7200RPM Up to 16X DVD R DL LightScribe DVD and CD Combo drive (Up to 40x CDR and 24x CDRW ) / 2nd DVD Up to 128MB Allocated Shared Video Memory