# SEAGATE IronWolf Pro [4TB/18TB] NAS Hard Drives #

Power-On Hours (per year) Sector Size (Bytes per Logical Sector) Spindle Speed (RPM) Interface Access Speed (Gb/s) Rotational Vibration @ 10-1500 Hz (rad/s) POWER CONSUMPTION Startup Current, Typical (12V, A) Idle Power, Average (W) Average Operating Power (W) 8.7 W / 8.0 W Power Supply Requirements +12 V and +5 V 70/40 Gs (4 TB) 40/40Gs (18 TB) Vibration, Non-operating 10 Hz to 500 Hz (Grms).