HDD SATA Western Digital WD Purple 8TB 3.5-inch WD85PURZ, CMR, 5640 RPM, cache 256MB, viteza transfer pana la 215MB/s, fiabil pentru supraveghere, temperatura operare 0-65°C
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Specifications
SURVEILLANCE HARD DRIVE
8TB 6TB 4TB 3TB 2TB 1TB
Model Number WD85PURZ WD64PURZ WD43PURZ WD33PURZ WD23PURZ WD11PURZ
Formatted capacity1 8TB 6TB 4TB 3TB 2TB 1TB
Form factor 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Advanced Format (AF) Yes Yes Yes Yes Yes Yes
Recording Technology CMR CMR CMR CMR CMR CMR
Interface SATA 6Gb/s SATA 6Gb/s SATA 6Gb/s SATA 6Gb/s SATA 6Gb/s SATA 6Gb/s
RoHS compliant2 Yes Yes Yes Yes Yes Yes
Product Features
Cameras supported³ Up to 64 HD Up to 64 HD Up to 64 HD Up to 64 HD Up to 64 HD Up to 64
Maximum Drive Bays Supported 16 16 16 16 8 8
Firmware Feature Name AllFrame AllFrame AllFrame AllFrame AllFrame AllFrame
Tarnish resistant components Yes Yes Yes Yes No No
RV Sensors Yes Yes Yes Yes No No
Performance
Interface transfer rate (max)⁴
Buffer to host
Host to/from drive (sustained)5
6 Gb/s
215 MB/s
6 Gb/s
180MB/s
6 Gb/s
180MB/s
6 Gb/s
180MB/s
6 Gb/s
180MB/s
6 Gb/s
180MB/s
Cache (MB)¹ 256 256 256 256 64 64
Reliability/Data Integrity
Load/unload cycles⁶ 300,000 300,000 300,000 300,000 300,000 300,000
Annualized workload rating⁷ 180TB/yr 180TB/yr 180TB/yr 180TB/yr 180TB/yr 180TB/yr
Non-recoverable read errors per bits read <1 in 10^14 <1 in 10^14 <1 in 10^14 <1 in 10^14 <1 in 10^14 <1 in 10^14
MTBF8 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000 1,000,000
Limited warranty (years)9 3 3 3 3 3 3
Power Management10
Average power requirements (W)
Read/Write
Idle
Standby and Sleep
5.3
4.7
0.4
4.7
4.3
0.3
4.7
4.3
0.3
4.6
3.7
0.3
3.8
3.2
0.3
3.8
3.2
0.3
Environmental Specifications
Temperature (°C, on the base casting)
Operating
Non-operating
0 to 65
-40 to 70
0 to 65
-40 to 70
0 to 65
-40 to 70
0 to 65
-40 to 70
0 to 65
-40 to 70
0 to 65
-40 to 70
Shock (Gs)
Operating (2 ms, read/write)
Operating (2 ms, read)
Non-operating (2 ms)
70
70
250
30
65
250
30
65
250
30
65
250
30
65
250
30
65
250
Acoustics (dBA)
Idle
Seek (average)
24
28
23
27
23
27
23
27
21
26
21
26
Physical Dimensions
Height (in./mm, max) 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1 1.028/26.1
Length (in./mm, max) 5.787/147 5.787/147 5.787/147 5.787/147 5.787/147 5.787/147
Width (in./mm, ± .01 in.) 4/101.6 4/101.6 4/101.6 4/101.6 4/101.6 4/101.6
Weight (lb/kg, ± 3%) 1.58/0.72 1.26/0.57 1.26/0.57 1.26/0.57 0.99/0.45 0.99/0.45