WD Purple Surveillance Hard Drive – 4 TB-WD42PURZ
Features
4TB Storage Capacity
3.5″ Form Factor
SATA III 6 Gb/s Interface
256MB Cache
5400 rpm
Up to 150 MB/s Sustained Data Transfers
300,000 Load/Unload Cycles
180TB per Year Workload Rating
Designed for 24/7 Surveillance
Supports up to 64 HD Cameras
Specification
Storage Capacity Total: 4 TB SATA III (6 Gb/s) 3.5″ HDD (5400 rpm)
Read Speed Sequential: 150 MB/s
Write Speed Sequential: 150 MB/s
Buffer 256 MB
HDD Specs
Noise Level 28.0 dB (Active)
25.0 dB (Idle)
Reliability / Data Integrity
Encryption None
Endurance (Total Bytes Written) 180 TB
Load/Unload Cycles 300,000
Mean Time Between Failures (MTBF) 1.0 Million Hours
Non-Recoverable Read Errors per Bits Read 1 in 1014
Electrical
Power Draw 5.1 W (Active)
4.5 W (Idle)
0.4 W (Standby)
Environmental
Operating Temperature 32 to 149°F / 0 to 65°C
Storage Temperature -40 to 158°F / -40 to 70°C
Operating Shock 30 G / 2.0 ms
Storage Shock 250 G / 2.0 ms
General
Certifications RoHS
*as per Manufacturer
Dimensions 5.79 x 4.02 x 1.06″ / 147.07 x 102.11 x 26.92 mm
Weight 1.5 lb / 0.68 kg
Packaging Info
Package Weight 1.515 lb
Box Dimensions (LxWxH) 8.8 x 7 x 2.9″