Product comparison · 2 external hard drives

Freecom Hard Drive Classic 400GB vs Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB

10specifications compared
5differ
5identical
19known for one product only

Key differences

The Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB has 350 GB more HDD capacity than the Freecom Hard Drive Classic 400GB (750 GB vs 400 GB). The Freecom Hard Drive Classic 400GB has 8 MB more storage drive buffer size than the Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB (16 MB vs 8 MB). Product colour: Black on the Freecom Hard Drive Classic 400GB, Silver on the Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB. Weight: 750 g on the Freecom Hard Drive Classic 400GB, 1.14 kg on the Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB. Dimensions (WxDxH): 200 x 115 x 40 mm on the Freecom Hard Drive Classic 400GB, 4.1 x 14 x 24 mm on the Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB.

HDD capacity
- Hard Drive Classic 400GB:400 GB
- UltraMax™ Hard Drive 750GB eSata/FW800/400/USB:750 GB
Storage drive buffer size
- Hard Drive Classic 400GB:16 MB
- UltraMax™ Hard Drive 750GB eSata/FW800/400/USB:8 MB
Product colour
- Hard Drive Classic 400GB:Black
- UltraMax™ Hard Drive 750GB eSata/FW800/400/USB:Silver
Weight
- Hard Drive Classic 400GB:750 g
- UltraMax™ Hard Drive 750GB eSata/FW800/400/USB:1.14 kg
Dimensions (WxDxH)
- Hard Drive Classic 400GB:200 x 115 x 40 mm
- UltraMax™ Hard Drive 750GB eSata/FW800/400/USB:4.1 x 14 x 24 mm

Side by side

Differences highlightedShow differences only

Comparison of Hard Drive Classic 400GB, UltraMax™ Hard Drive 750GB eSata/FW800/400/USB
29 specifications	A Freecom Hard Drive Classic 400GB View product	B Iomega UltraMax™ Hard Drive 750GB eSata/FW800/400/USB View product
Hard drive2 differ
HDD capacityDiffers	400 GB	750 GB
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
Storage drive average seek timeKnown for one	9 ms	Unknown — not stated by the source
Storage drive buffer sizeDiffers	16 MB	8 MB
Ports & interfacesidentical
Maximum data transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
USB connectorKnown for one	USB	Unknown — not stated by the source
USB versionKnown for one	2.0	Unknown — not stated by the source
eSATAKnown for one	Unknown — not stated by the source	Yes
FireWire 400Known for one	Unknown — not stated by the source	Yes
FireWire 800Known for one	Unknown — not stated by the source	Yes
Features1 differ
Product colourDiffers	Black	Silver
Poweridentical
External power adapterKnown for one	Yes	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	20 - 80 °C	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	750 g	1.14 kg
Other features1 differ
Average latencyKnown for one	4.2 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	50000 h	Unknown — not stated by the source
Minimum RAMKnown for one	256 MB	Unknown — not stated by the source
Track to track seek timeKnown for one	0.8 ms	Unknown — not stated by the source
USB requiredKnown for one	Yes	Unknown — not stated by the source
Dimensions (WxDxH)Differs	200 x 115 x 40 mm	4.1 x 14 x 24 mm
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Power requirementsKnown for one	Unknown — not stated by the source	5 VDC +/- 5%; 12VDC +/- 10%
Supported data transfer ratesKnown for one	Unknown — not stated by the source	800, 480, 400 Mbit/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.

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