Product comparison · 2 external hard drives

Freecom Mobile Hard Drive 80GB vs iStorage QS2 500GB SATA

10specifications compared
7differ
3identical
20known for one product only

Key differences

HDD capacity
- Mobile Hard Drive 80GB:80 GB
- QS2 500GB SATA:500 GB
HDD speed
- Mobile Hard Drive 80GB:5400 RPM
- QS2 500GB SATA:7200 RPM
Storage drive buffer size
- Mobile Hard Drive 80GB:8 MB
- QS2 500GB SATA:16 MB
Weight
- Mobile Hard Drive 80GB:300 g
- QS2 500GB SATA:907 g
Mean time between failures (MTBF)
- Mobile Hard Drive 80GB:50000 h
- QS2 500GB SATA:750000 h
Dimensions (WxDxH)
- Mobile Hard Drive 80GB:132 x 83 x 18 mm
- QS2 500GB SATA:196 x 114 x 35 mm

Side by side

Differences highlightedShow differences only

Comparison of Mobile Hard Drive 80GB, QS2 500GB SATA
30 specifications	A Freecom Mobile Hard Drive 80GB View product	B iStorage QS2 500GB SATA View product
Hard drive3 differ
HDD capacityDiffers	80 GB	500 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Type	HDD	HDD
Storage drive average seek timeKnown for one	13 ms	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
Ports & interfacesidentical
Maximum data transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
Featuresidentical
Product colourKnown for one	Black	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Bus poweredKnown for one	USB	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 35 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 80 °C	Unknown — not stated by the source
Operating shockKnown for one	Unknown — not stated by the source	200 G
Weight & dimensions1 differ
WeightDiffers	300 g	907 g
Other features3 differ
Average latencyKnown for one	4.2 ms	Unknown — not stated by the source
Internal	No	No
Mac compatibility	Yes	Yes
Mean time between failures (MTBF)Differs	50000 h	750000 h
Minimum RAMKnown for one	256 MB	Unknown — not stated by the source
Minimum processorKnown for one	Intel Pentium III / AMD Duron 900 MHz	Unknown — not stated by the source
Track to track seek timeKnown for one	3 ms	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
USB requiredKnown for one	Yes	Unknown — not stated by the source
Compatible operating systemsDiffers	Windows 2000 / XP / Vista Mac OS X v10.3 +	- Windows 98 - Windows 98SE - Windows ME - Windows 2000 - Windows XP - Windows Vista - Mac OS X
Dimensions (WxDxH)Differs	132 x 83 x 18 mm	196 x 114 x 35 mm
Access timeKnown for one	Unknown — not stated by the source	8.5 ms
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Interface typeKnown for one	Unknown — not stated by the source	USB 2.0 & eSATA
Supported data transfer ratesKnown for one	Unknown — not stated by the source	USB: 480mbps; eSATA: 3gbps
Packaging dataidentical
Bundled softwareKnown for one	Unknown — not stated by the source	NTI Backup NOW! 4 OEM (Windows)

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.

More external hard drive comparisons

All external hard drive comparisons