Product comparison · 2 external hard drives

Buffalo HD-PV640U2/BK-EU external hard drive vs Iomega UltraMax Plus 34497 external hard drive

12specifications compared
9differ
3identical
23known for one product only

Key differences

HDD capacity
- HD-PV640U2/BK-EU external hard drive:640 GB
- UltraMax Plus 34497 external hard drive:4 TB
Product colour
- HD-PV640U2/BK-EU external hard drive:Black
- UltraMax Plus 34497 external hard drive:Grey
Bus powered
- HD-PV640U2/BK-EU external hard drive:USB
- UltraMax Plus 34497 external hard drive:No
Width
- HD-PV640U2/BK-EU external hard drive:81 mm
- UltraMax Plus 34497 external hard drive:128 mm
Depth
- HD-PV640U2/BK-EU external hard drive:16 mm
- UltraMax Plus 34497 external hard drive:200 mm
Height
- HD-PV640U2/BK-EU external hard drive:130 mm
- UltraMax Plus 34497 external hard drive:79 mm
Weight
- HD-PV640U2/BK-EU external hard drive:190 g
- UltraMax Plus 34497 external hard drive:1.95 kg
USB 2.0 ports quantity
- HD-PV640U2/BK-EU external hard drive:1
- UltraMax Plus 34497 external hard drive:3

Side by side

Differences highlightedShow differences only

Comparison of HD-PV640U2/BK-EU, 34497
35 specifications	A Buffalo HD-PV640U2/BK-EU external hard drive Model HD-PV640U2/BK-EU View product	B Iomega UltraMax Plus 34497 external hard drive Model 34497 View product
Hard drive1 differ
HDD capacityDiffers	640 GB	4 TB
Type	HDD	HDD
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
RAID levelsKnown for one	Unknown — not stated by the source	JBOD
InterfaceKnown for one	Serial ATA	Unknown — not stated by the source
Ports & interfacesidentical
Maximum data transfer rateKnown for one	Unknown — not stated by the source	3000 Mbit/s
Ethernet LAN	No	No
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	Grey
LED indicatorsKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Bus poweredDiffers	USB	No
Power consumption (typical)Known for one	2.5 W	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	81 mm	128 mm
DepthDiffers	16 mm	200 mm
HeightDiffers	130 mm	79 mm
WeightDiffers	190 g	1.95 kg
Packaging dataidentical
User guideKnown for one	Unknown — not stated by the source	Yes
Bundled softwareKnown for one	Unknown — not stated by the source	Roxio Retrospect MozyHome Online
Other features2 differ
FireWire requiredKnown for one	Unknown — not stated by the source	Yes
Internal	No	No
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
Minimum RAMKnown for one	Unknown — not stated by the source	256 MB
Minimum processorKnown for one	Unknown — not stated by the source	300mhz Pentium/Mac PowerPC G3
Minimum storage drive spaceKnown for one	Unknown — not stated by the source	200 MB
Minimum system requirementsKnown for one	Unknown — not stated by the source	CD-ROM/DVD
Quick start guideKnown for one	Unknown — not stated by the source	Yes
USB 2.0 ports quantityDiffers	1	3
USB requiredKnown for one	Unknown — not stated by the source	Yes
Compatible operating systemsDiffers	Windows 7 (32/64-Bit), Windows Vista (32/64-Bit), Windows XP, Windows 2000, Mac OS x 10.4	Microsoft Windows Vista / 2000 Professional / XP Home / XP Professional / XP Professional x64 Mac OS X 10.1
HDD transfer rateKnown for one	480 Mbit/s	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	20 - 80%	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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