Hgst 0F38459-20PK Wd Ultrastar Dc Hc550 Wuh721818ale6l4 - Hard Drive - 18 Tb - Sata 6gbs

General
Interface
SATA 6 Gb/s
Capacity
18TB
Format: Sector size (bytes)
4Kn: 4096
512e: 512
Performance
Data buffer (MB)
512
Rotational speed (RPM)
7200
Sustained transfer rate
(MiB/s, typical)
257
(MB/s, typical)
269
Reliability
Error rate (non-recoverable bits read)
1 in 1015
MTBF (M hours, projected)
2.5
Annualized Failure Rate (AFR, projected)
0.35%
Load/Unload cycles (at 40oC)
600,000
Availability (hrs/day x days/wk)
24x7
Acoustics
Idle/Operating (Bels, typical)
2.0
Power
Requirement
+5 VDC, +12VDC
Operating (W)
6.5
Idle (W)
5.6
Power consumption efficiency at Idle
(Watts/TB)
0.31
Environmental (Operating)
Ambient temperature
5oC to 60oC
Shock (half-sine wave, 2ms, G)
70
Vibration-Operating (G RMS, 5 to 500 Hz)
0.67 (XYZ) Environmental (Non-Operating)
Ambient temperature
-40oC to 70oC
Shock (half-sine wave, G)
250 (2ms)
Random Vibration (G RMS, 2 to 200 Hz)
1.04 (XYZ)
Item Dimension (L"x W"x H")
6 x 4 x 2
Weight
1.50 LB
Warranty Information
5 years