Lenovo ThinkCentre M71e SFF Desktop PC - Dual Core 2.7GHz 2GB Win7 - 3134XF4 Intel Pentium Dual CoreG630 (2.7GHZ,3M Cache) Genuine Windows 7 Professional 64 - English Hard Drive320GB, 7200RPM Serial ATA 3.5" Hard Drive Total Memory2GB PC3-10600 DDR3 1333MHz SDRAM UDIMM Memory Optical DeviceDVD Recordable 8x Max Dual Layer