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Western Digital Ultrastar DC HC550 18TB 512MB 7200RPM SATA 512E SE NP3


SATA General Interface SATA 6 Gbps SAS 12 Gbps Capacity1 18TB / 16TB 18TB / 16TB Format: Sector size (bytes)2 4Kn: 4096 4Kn: …
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SATA SAS
General
Interface SATA 6 Gb/s SAS 12 Gb/s
Capacity 1 18TB / 16TB 18TB / 16TB
Format: Sector size (bytes) 2 4Kn: 4096 4Kn: 4096, 4112
512e: 512 4160, 4224
512e: 512, 520, 528
Performance
Data buffer (MB) 3 512 512
Rotational speed (RPM) 7200 7200
Sustained transfer rate
(MiB/s, typical) 257/250 257/250
(MB/s, typické) 4 269/262 269/262
Reliability
Error rate (non-recoverable bits read) 1 in 10 15 1 in 10 15
MTBF (M hours, projected) 5 2,5 2,5
Annualized Failure Rate (AFR, projected) 0.35% 0.35%
Load/Unload cycles (at 40°C) 600 600
Availability (hrs/day x days/wk) 24x7 24x7
Limited Warranty (yrs) 5 5
Acoustics
Idle/Operating (Bels, typical) 2.0/3.6 2.0/3.6
Power
Requirement +5 VDC, +12 VDC +5 VDC, +12 VDC
Operating (W) 6 6,5 8,8
Idle (W) 7 5,6 5,8
Power consumption efficiency at Idle 0.31/0.35 0.32/0.36
(Watts/TB)
Physical Size
z-height (mm) 26.1 26.1
Dimensions (width x depth, mm) 101.6 (+/-0.25) x 147 101.6 (+/-0.25) x 147
Weight (g, max) 690 690
Environmental (Operating)
Ambient temperature 5°C až 60°C 5°C až 60°C
Shock (half-sine wave, 2ms, G) 70 70
Vibration-Operating (G RMS, 5 až 500 Hz) 0.67 (XYZ)
Environmental (Non-Operating)
Ambient temperature -40°C až 70°C -40°C až 70°C
Shock (half-sine wave, G) 250 (2ms)/ 150 (11ms) 250 (2ms)/ 150 (11ms)
Random Vibration (G RMS, 2 to 200 Hz) 1.04 (XYZ) 1.04 (XYZ)