Satellite T235-S1370 Q4 Toshiba Satellite T235-S1370 13.3-Inch Laptop ( Fusion Chrome Finish in Black) - PST4AU-01C018 Operating System Genuine Windows 7 Home Premium 64-bit Processor and Graphics Intel Pentium U5400 Processor o 1.2 GHz; 3MB Cache Mobile Intel HM55 Express Chipset Mobile Intel HD Graphics with 64MB-1696MB dynamically allocated shared graphics memory. Memory Configured with 4GB DDR3 1066MHz (works at 800MHz; max 8GB). 2 main memory slots. Both slots occupied. Storage Drive 320GB (5400 RPM) Serial ATA hard disk drive.