Product comparison · 2 internal hard drives

Seagate 40GB 3.5 vs Seagate U-series ST320014A-RFB internal hard drive

24specifications compared
10differ
14identical
22known for one product only

Key differences

HDD capacity
- 40GB 3.5:40 GB
- U-series ST320014A-RFB internal hard drive:20 GB
HDD speed
- 40GB 3.5:7200 RPM
- U-series ST320014A-RFB internal hard drive:5400 RPM
HDD number of heads
- 40GB 3.5:16
- U-series ST320014A-RFB internal hard drive:1
Read seek time
- 40GB 3.5:11 ms
- U-series ST320014A-RFB internal hard drive:18 ms
Write seek time
- 40GB 3.5:12 ms
- U-series ST320014A-RFB internal hard drive:24.9 ms
Non-operating altitude
- 40GB 3.5:-60.96 - 12192 m
- U-series ST320014A-RFB internal hard drive:-121.92 - 12192 m
Width
- 40GB 3.5:101.6 mm
- U-series ST320014A-RFB internal hard drive:101.9 mm
Depth
- 40GB 3.5:146.9 mm
- U-series ST320014A-RFB internal hard drive:147 mm

Side by side

Differences highlightedShow differences only

Comparison of 40GB 3.5, ST320014A-RFB
46 specifications	A Seagate 40GB 3.5 View product	B Seagate U-series ST320014A-RFB internal hard drive Model ST320014A-RFB View product
Features5 differ
HDD capacityDiffers	40 GB	20 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD size	3.5"	3.5"
Interface	Ultra-ATA/100	Ultra-ATA/100
Type	HDD	HDD
Storage drive buffer size	2 MB	2 MB
HDD number of headsDiffers	16	1
Read seek timeDiffers	11 ms	18 ms
Write seek timeDiffers	12 ms	24.9 ms
Full stroke seek timeKnown for one	Unknown — not stated by the source	42 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	1.2 ms
Average seek timeKnown for one	Unknown — not stated by the source	12.7 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Bytes per sector	512	512
Start/stop cycles	50000	50000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	600000 h
HDD number of cylindersKnown for one	16383	Unknown — not stated by the source
Average latencyKnown for one	4.16 ms	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	6 W
Power consumption (standby)Known for one	Unknown — not stated by the source	1.2 W
Power consumption (idle)Known for one	Unknown — not stated by the source	4.5 W
Power consumption (read)Known for one	Unknown — not stated by the source	5.5 W
Power consumption (write)Known for one	Unknown — not stated by the source	5.5 W
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentKnown for one	2.8 A	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	5 G
Operating altitude	-60.96 - 3048 m	-60.96 - 3048 m
Non-operating altitudeDiffers	-60.96 - 12192 m	-121.92 - 12192 m
Operating shock	63 G	63 G
Non-operating shock	350 G	350 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	101.9 mm
DepthDiffers	146.9 mm	147 mm
HeightDiffers	26 mm	20 mm
WeightDiffers	580 g	455 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717050
Other featuresidentical
Drive ready timeKnown for one	Unknown — not stated by the source	7 s
Drive devices burst data transfer rate (DMA)Known for one	2	Unknown — not stated by the source
Drive devices burst data transfer rate (PIO)Known for one	4	Unknown — not stated by the source
Drive devices burst data transfer rate (Ultra DMA)Known for one	5	Unknown — not stated by the source
Packaging contentidentical
Storage drive adapter includedKnown for one	No	Unknown — not stated by the source
Packaging dataidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source

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.

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