Lenovo 2.5 180GB SATA III MLC Internal Solid State Drive (SSD) 45N8295 Max Sequential Read: Up to 550 MBps Max Sequential Write: Up to 520 MBps Power Consumption (Active): 850 mW Power Consumption (Idle): 600 mW Max Shock Resistance: Operating and Non-operating 1500G/0.5msec. Max Vibration Resistance: Operating 2.17Grms (5 - 700Hz) Non-operating 3.13Grms (5 - 800Hz) MTBF: 1,200,000 hours Operating Temperature: 0°C ~ +70°C