Seagate Surveillance HDD, 3TB vs Seagate Surveillance HDD, 4TB

Comparison of Surveillance HDD, 3TB, Surveillance HDD, 4TB

22 specifications	A Seagate Surveillance HDD, 3TBView product	B Seagate Surveillance HDD, 4TBView product
Features1 differ
HDD capacityDiffers	3 TB	4 TB
HDD size	3.5"	3.5"
Interface	Serial ATA III	Serial ATA III
Type	HDD	HDD
Component for	Surveillance system	Surveillance system
Storage drive buffer size	64 MB	64 MB
Read seek time	8.5 ms	8.5 ms
Write seek time	9.5 ms	9.5 ms
Bytes per sector	4096	4096
Start/stop cycles	300000	300000
Poweridentical
Power consumption (typical)	8 W	8 W
Power consumption (standby)	0.75 W	0.75 W
Power consumption (idle)	5.4 W	5.4 W
Operating voltage	5 / 12 V	5 / 12 V
Start-up current	2 A	2 A
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Weight & dimensionsidentical
Width	101.6 mm	101.6 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
Weight	610 g	610 g
Other featuresidentical
Data transfer rate	6 Gbit/s	6 Gbit/s

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.