Western Digital UltraStar HC550 18TB 7200RPM SATA 512MB Cache 3.5 Inch Enterprise Drive
• The industry’s first Triple Stage Actuator (TSA) enhances head-positioning accuracy, delivering better performance and increased areal density.
• HelioSeal technology is the foundation for Western Digital’s high capacity HDDs and this is the 6th generation of HelioSeal product. Western Digital has shipped >65 million HelioSeal products to date.
• Interface: SATA 6 Gb/s
• Data Buffer: 512MB
• RPM: 7200
• Operating temperature: 5 - 60 °C
• Storage temperature: -40 - 70 °C
• Height (maximum): 26.1mm
• Width (maximum): 101.6mm
• Length (maximum): 147mm
• Weight: 690g
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