WD ULTRASTAR DC HC300-SERIES HUS726T4TALS205 4TB 3.5" 7200RPM 256MB Cache SAS HDD

Capacity: 4TB
Model Number: HUS726T4TALS205
Interface: SAS 12Gb/s
Form Factor: 3.5-inch
"Sector Size (bytes): 512n*/512e: 512, 520, 528
4Kn: 4096, 4104, 4160,
4224"
"Max. Areal Density (Gbits/sq. in.,
max): 753"
Performance:
Data Buffer (MB): 256
Rotational Speed (RPM): 7200
Latency Average (ms): 4.16
Interface Transfer Rate (MB/s, max) : 1200
Sustained transfer rate (MB/sec, max) / (MiB/sec, max: 233/222
Reliability:
Error Rate (non-recoverable bits read): 1 in 10^15
Load/Unload Cycles (at 40°C): 600000
MTBF: 2M hours
Annual Failure Rate (AFR): 0.0044
Availability (hrs/day x days/wk): 24x7
Limited Warranty (yrs): 5
Acoustics:
Idle/Operating (Bels, typical): 2.9 / 3.6
Power:
Requirement: +5V, +12V
Operating (W, typical): 12.1
Idle (W): 7
Physical Size:
z-height (mm, max): 26.1
Dimensions (width x depth, mm): 101.6 (+/-0.25) x 147
Environmental (Operating):
Ambient Temperature: 5° to 60°C
"Shock (half-sine wave, 2ms, G)
(Read/Write): 70/70"
Vibration (G RMS, 5 to 500Hz): 0.67 (XYZ)
Environmental (Non-operating):
Ambient Temperature: -40° to 70°C
Shock (half-sine wave, 2ms, G): 300
Vibration (G RMS, 2 to 200Hz): 1.04 (XYZ)