Type: HDD
Interface: SATA
Form Factor: 3.5 inch
Capacity: 4 TB
Desktop 
Services 3 Year Included Limited Warranty
In The Box
Sales Package WD 4 TB Purple Surveillance Internal Hard Drive and Warranty Document
Brand WD
Model ID WD40PURX
Drive Configuration Device
Desktop
Device Type 3.5 inch HDD
Drive Capacity 4 TB
Interface SATA
Cache Memory 64 MB
Non-recoverable Read Error 1 per 10^14
Reliability 300000 (Load/Unload Cycles)
Form Factor 3.5 inch
Power
 Idle 4.5 W
Power Consumption 5.1 W (Read/Write), 0.5 W (Standby/Sleep)
Operating Conditions 
Operating Temperature 0DegC to 65DegC 
Non-Operating Temperature -40DegC to 70DegC
Shock Tolerance Read / Write: 30 Gs for 2 ms, Read: 65 Gs for 2 ms (Operating), 250 Gs for 2 ms (Non-Operating)
Other Features User Sectors Per Drive: 7814037168, Advanced Format, RoHS Compliant, Rotational Speed: IntelliPower, Acoustics: Idle - 25 dBA, Seek (Average): 26 dBA
Dimensions 101.6 mm x 26.1 mm x 147 mm
Weight 680 g
Warranty Warranty Summary 3 Year Included Limited Warranty