Seagate NAS 3TB vs Seagate NAS 4TB

Comparison of NAS 3TB, NAS 4TB

25 specifications	A Seagate NAS 3TBView product	B Seagate NAS 4TBView product
Features1 differ
HDD capacityDiffers	3 TB	4 TB
HDD speed	5900 RPM	5900 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA III	Serial ATA III
Storage drive buffer size	64 MB	64 MB
SMART technology	Yes	Yes
Start/stop cycles	600000	600000
Mean time between failures (MTBF)	1000000 h	1000000 h
Poweridentical
Power consumption (standby)	4.8 W	4.8 W
Power consumption (PowerSave)	0.5 W	0.5 W
Power consumption (idle)	3.95 W	3.95 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
Operating shock	80 G	80 G
Non-operating shock	300 G	300 G
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
Product colour	Black	Black
Data transfer rate	6 Gbit/s	6 Gbit/s
Windows operating systems supported	Yes	Yes
Sustained data rate	180 MB/s	180 MB/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.