Product comparison · 2 internal hard drives

Seagate ST930818SM 30GB vs Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk

18specifications compared
12differ
6identical
15known for one product only

Key differences

The Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk has 220 GB more HDD capacity than the Seagate ST930818SM 30GB (250 GB vs 30 GB). The Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk has 1,800 RPM more HDD speed than the Seagate ST930818SM 30GB (7200 RPM vs 5400 RPM). The Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk has 1" more HDD size than the Seagate ST930818SM 30GB (3.5" vs 2.5"). Interface: Serial ATA on the Seagate ST930818SM 30GB, Ultra-ATA/100 on the Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk. Operating voltage: 5 V on the Seagate ST930818SM 30GB, 5 / 12 V on the Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk.

HDD capacity
- ST930818SM 30GB:30 GB
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:250 GB
HDD speed
- ST930818SM 30GB:5400 RPM
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:7200 RPM
HDD size
- ST930818SM 30GB:2.5"
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:3.5"
Interface
- ST930818SM 30GB:Serial ATA
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:Ultra-ATA/100
Read seek time
- ST930818SM 30GB:13 ms
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:17 ms
Operating voltage
- ST930818SM 30GB:5 V
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:5 / 12 V
Operating temperature (T-T)
- ST930818SM 30GB:-20 - 75 °C
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:0 - 60 °C
Width
- ST930818SM 30GB:69.8 mm
- SV35 Series 7200.2 250GB Ultra-ATA/100 20pk:101.6 mm

Side by side

Differences highlightedShow differences only

Comparison of ST930818SM 30GB, SV35 Series 7200.2 250GB Ultra-ATA/100 20pk
33 specifications	A Seagate ST930818SM 30GB View product	B Seagate SV35 Series 7200.2 250GB Ultra-ATA/100 20pk View product
Features5 differ
HDD capacityDiffers	30 GB	250 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Component forKnown for one	Unknown — not stated by the source	Surveillance system
Read seek timeDiffers	13 ms	17 ms
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
HDD number of cylindersKnown for one	16383	Unknown — not stated by the source
HDD number of headsKnown for one	1	Unknown — not stated by the source
Full stroke seek timeKnown for one	23 ms	Unknown — not stated by the source
Average latencyKnown for one	5.6 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1000000 h	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)Differs	-20 - 75 °C	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Operating shockKnown for one	Unknown — not stated by the source	63 G
Non-operating shockKnown for one	Unknown — not stated by the source	300 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.5 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	102 g	600 g
Other features1 differ
Power requirementsDiffers	5V ± 5%	+5V; +12V
Drive ready timeKnown for one	Unknown — not stated by the source	7 s
Recording densityKnown for one	840 kbit/inch	Unknown — not stated by the source
Track densityKnown for one	150k tracks/inch	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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