WD RED PRO NAS WD181KFGX 18TB 3.5" 7200RPM 512MB Cache SATA HDD

Capacity: 18TB
Model Number: WD181KFGX
Recording technology: CMR
Interface: SATA 6 Gb/s
Form factor: 3.5-inch
Native command queuing: Yes
OptiNAND™ technology: No
Advanced Format (AF): Yes
RoHS compliant: Yes
Performance:
Interface speed (max): 6 Gb/s
Internal transfer rate: 272 MB/s
Cache (MB): 512
RPM: 7200
Reliability/Data Integrity:
Load/unload cycles: 600000
Non-recoverable errors per bits read: <1 in 10^15
MTBF (hours): 2500000
Workload rate (TB/year): 550
Limited warranty (years): 5
Power Management:
"12VDC ±5% (A, peak)
: 1.8"
5VDC ±5% (A, peak): 6.1
Average power requirements (W) Read/Write Idle: 3.6
Standby and Sleep: 0.9
Environmental Specifications:
Temperature (°C) Operating: 0 to 65
Non-operating: -40 to 70
Shock (Gs) Operating, (2 ms, read/write): 30
Operating, (2 ms, read): 50
Non-operating (2 ms): 250
Acoustics (dBA) Idle: 20
Seek (average): 36
Physical Dimensions:
Height (in./mm, max): 1.028/26.1
Length (in./mm, max): 5.787/147
Width (in./mm, ± .01 in.): 4/101.6
Weight (lb/kg , ± 10%): 1.52/0.69