-28%
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12TB WD Purple HDD for Surveillance (WD121PURZ)

GIGABYTEWESTERN DIGITAL

For NVR & DVR Surveillance Systems.

Deep Learning/AI Capable NVR Systems.

Supports up to 360TB/yr workload rate.

 

34,399.00 47,740.00

For Video Surveillance 24 X 7 application.

Engineered specifically for surveillance security systems.

Supports up to 360TB/yr workload rate.

Tuned for write-intensive, low bit-rate, high stream-count applications typical to most surveillance applications.

Prioritized write-operations for maximized surveillance performance.

NVR & DVR Surveillance Systems.

Up to 64 Cameras Per HD.

Deep Learning/AI Capable NVR Systems (8TB, 10TB, 12TB & 14TB).

Engineered specifically for surveillance security systems.

Prioritized write-operations for maximized surveillance performance

surveillance drive

Weight 4 kg
Storage

SURVEILLANCE HDD

UPC

718037863726

brands

,

Specifications5
DATA SHEET SURVEILLANCE HARD DRIVES
WD Purple™
* As used for storage capacity, 1TB = one trillion bytes. Actual user
capacity may be less, depending on operating environment.
¹ Up to 1.5M MTBF for 8TB, 10TB, 12TB and 14TB capacities (up to
1.0M MTBF for lower capacities). MTBF specifications are based
upon internal testing using a 40°C base casting temperature. MTBF
is based on a sample population and is estimated by statistical
measurements and acceleration algorithms. MTBF does not predict
an individual drive’s reliability and does not constitute a warranty.
² For capacities 4TB and higher.
³ As of April 2018
⁴ Not all products may be available in all regions of the world.
⁵ AAs used for storage capacity, one gigabyte (GB) = one billion
bytes and one terabyte (TB) = one trillion bytes. Total accessible
capacity varies depending on operating environment. As used
for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As
used for transfer rate or interface, megabyte per second (MB/s)
= one million bytes per second, and gigabit per second (Gb/s)
= one billion bits per second. Effective maximum SATA 6 Gb/s
transfer rate calculated according to the Serial ATA specification
published by the SATA-IO organization as of the date of this
specification sheet. Visit www.sata-io.org for detail.
⁶ WD hard drive products manufactured and sold worldwide
after June 8, 2011, meet or exceed Restriction of Hazardous
Substances (RoHS) compliance requirements as mandated by
the RoHS Directive 2011/65/EU.
⁷ Non-recoverable read errors per bits read.
⁸ Workload Rate is defined as the amount of user data transferred
to or from the hard drive. Workload Rate is annualized (TB
transferred x (8760 / recorded power-on hours)). Workload Rate
will vary depending on your hardware and software components
and configurations.
⁹ See http://support.wd.com/warranty for regional specific
warranty details.
10 Power measurements at room-ambient temperature.
11 No non-recoverable errors during operating tests or after nonoperating tests.
12 On the base casting.
13 Sound power level.
14TB 12TB 10TB 10TB 8TB 6TB 4TB 3TB 2TB 1TB
Model Number⁴ WD140PURZ WD121PURZ WD102PURZ WD101PURZ WD82PURZ WD60PURZ WD40PURZ WD30PURZ WD20PURZ WD10PURZ
Formatted capacity⁵ 14TB 12TB 10TB 10TB 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 3.5-inch 3.5-inch 3.5-inch 3.5-inch
Advanced format (AF) Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
RoHS compliant⁶ Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Product Features
Cameras supported Up to 64 Up to 64 Up to 64 Up to 64 Up to 64 Up to 64 Up to 64 Up to 64 Up to 64 Up to 64
Drive bays supported 16+ 16+ 16+ 16+ 16+ 8+ 8+ 8+ 8 8
Al streams 32 32 32 32 32 — — — — —
Firmware feature name AllFrame Al AllFrame Al AllFrame Al AllFrame Al AllFrame Al AllFrame 4K AllFrame 4K AllFrame 4K AllFrame 4K AllFrame 4K
Tarnish resistant components Yes Yes Yes Yes Yes Yes Yes No No No
Performance
Interface transfer rate (max)⁵
Buffer to host
Host to/from drive (sustained)
6 Gb/s
255 MB/s
6 Gb/s
245 MB/s
6 Gb/s
265 MB/s
6 Gb/s
245 MB/s
6 Gb/s
245 MB/s
6 Gb/s
175 MB/s
6 Gb/s
150 MB/s
6 Gb/s
145 MB/s
6 Gb/s
145 MB/s
6 Gb/s
110 MB/s
Cache (MB)⁵ 512 256 256 256 256 64 64 64 64 64
Performance class 7200 RPM 7200 RPM 7200 RPM 7200 RPM 7200 RPM 5400 RPM 5400 RPM 5400 RPM 5400 RPM 5400 RPM
Reliability/Data Integrity
Load/unload cycles⁷ 300,000 300,000 300,000 300,000 300,000 300,000 300,000 300,000 300,000 300,000
Annualized workload rating⁸ 360TB/yr 360TB/yr 360TB/yr 360TB/yr 360TB/yr 180TB/yr 180TB/yr 180TB/yr 180TB/yr 180TB/yr
Operating7
(W) <1 in 1015 <1 in 1015 <1 in 1015 <1 in 1015 <1 in 1015 <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014 <1 in 1014
MTBF 1,500,000 1,500,000 1,500,000 1,500,000 1,500,000 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 3 3 3 3
Power Management10
Average power requirements (W)
Read/Write
Idle
Standby and Sleep
6.0
5.7
0.8
6.6
5.6
0.6
9
8
0.5
6.3
5.2
0.5
8.6
7.4
0.4
5.3
4.9
0.4
5.1
4.5
0.4
4.4
4.1
0.4
4.4
4.1
0.4
3.3
2.9
0.4
Environmental Specifications11
Temperature (°C, on the base casting)
Operating12
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
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
300
30
65
250
70
70
250
30
65
250
30
65
250
30
65
250
30
65
250
30
65
250
30
65
250
30
65
250
Acoustics (dBA)13
Idle
Seek (average)
20
36
20
29
34
38
20
29
27
29
25
28
25
28
23
24
23
24
21
22
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 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 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 4/101.6 4/101.6 4/101.6 4/101.6
Weight (lb/kg, ± 10%) 1.52/0.69 1.46/0.66 1.65/0.75 1.43/0.65 1.58/0.715 1.65/0.75 1.50/0.68 1.40/0.64 1.32/0.60 0.99/0.45