Performance. Rotational Speed:7200 RPM. Average Latency:4.17ms. Sustained transfer rate (Max.):155 MB/s (3TB models). Buffer Size:64MiB FIFO ring buffer. Power Requirements. Voltage:5V+/-5% 12V+/-5%. Read/Write Power:11.3 watts. Low Power Idle:6.0 watts. Acoustics. Acoustics (idle):31 dB. Reliability. MTTF:1200000 hours. Load/Unload:600000 times. Operation Condition:24 hours/day 7day/week 100% duty. Item Dimension (LxWxH):. 5.79 x 4 x 1.03. Weight:. 1.59lb. Warranty Information:. 5 Years.