WESTERN DIGITAL Ultrastar DC HC550 3.5inch 26.1MM 18000GB 512MB 7200RPM SAS ULTRA 512E SE P3

WESTERN DIGITAL Ultrastar DC HC550 18TB HDD SAS Ultra 512MB 7200RPM 512E SE P3 DC HC550 3.5inch Bulk - WUH721818AL5204

Manufacturer	HGST
Manufacturer Part No	0F38353

Marketing Description
The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical. The 18TB Ultrastar DC HC550 HDDs are the first commercial implementation of Energy-Assisted Magnetic Recording technology and utilize the industry's first Triple Stage Actuator. These technologies, integrated with HelioSeal on a 9-disk platform, deliver the highest areal density and unmatched Total Cost of Ownership for customer and market needs.
Product Features
18ТВ, enabled by EAMR Provides 29% more capacity than 14TB helium-filled drives. Ultra-low Watts per Terabyte (W/TB) 21% lower idle W/TB than 14TB Ultrastar helium-filled drives. Triple Stage Actuator and Two-Dimensional Magnetic Recording (TDMR) technology More accurate head positioning, especially in multi-drive environments, for better performance and data integrity. Rotational Vibration Safeguard (RVS) Maintains drive performance in high rotational vibration environments and multi-drive systems. Media Cache Plus architecture Better random write performance. SATA 6Gb/s & SAS 12Gb/s Provides compatibility with high-performance data centers. 512MB cache buffer Improves response time and data management. Dual Safe, RSA-signed firmware Retains previous firmware version for safe firmware updates, verified with an RSA signature. 2.5M hours MTBF and 0.35% AFR Unsurpassed reliability rating for Capacity Enterprise HDD for fewer failures/less service needs.
General
Device Type	Hard drive - internal
Capacity	18 TB
Form Factor	3.5"
Interface	SAS 12Gb/s
Buffer Size	512 MB
Features	Rotational Vibration Safeguard (RVS), HelioSeal, Conventional magnetic recording (CMR), Sanitise Cryptographic Erase support, Media Cache Plus, Sanitise Cryptographic Scramble support, Two-Dimensional Magnetic Recording (TDMR), Energy-Assisted Magnetic Recording (EAMR), Triple State Actuator (TSA)
Width	101.6 mm
Depth	147 mm
Height	26.1 mm
Weight	690 g
Performance
Drive Transfer Rate	1.2 GBps (external)
Internal Data Rate	262 MBps
Average Latency	4.16 ms
Spindle Speed	7200 rpm
Reliability
MTBF	2,500,000 hours
24x7 Operation	Yes
Non-Recoverable Errors	1 per 10^15
Load / Unload Cycles	600,000
Expansion & Connectivity
Interfaces	1 x SAS 12 Gb/s
Compatible Bay	3.5"
Power
Power Consumption	8.8 Watt (typical) 5.8 Watt (idle)
Manufacturer Warranty
Service & Support	Limited warranty - 5 years
Environmental Parameters
Min Operating Temperature	5 °C
Max Operating Temperature	60 °C
Min Storage Temperature	-40 °C
Max Storage Temperature	70 °C
Shock Tolerance (operating)	50 g @ 2 ms half-sine wave
Shock Tolerance (non-operating)	250 g @ 2 ms half-sine wave
Vibration Tolerance (operating)	0.67 g @ 5-500 Hz
Vibration Tolerance (non-operating)	1.04 g @ 2-200 Hz

Technical data provided by third party. We assume no liability for errors within these data.