Dell corporation always released new products for satisfication their users, one of new pc is Dell Optiplex 755 Desktop PC, it's up to 8GB of main memory, support for SATA HDD, either an integrated Intel GMA 3100 or 256MB ATI Radeon HD 2400 PRO (single or SLI mode) graphics engine, and either Windows XP or Vista operating system. if you need Dell Optiplex 755 drivers, you may download from their site.