Product comparison · 2 external hard drives

Seagate OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0) vs Seagate OneTouch™ III 300GB

Key differences

HDD capacity
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):500 GB
- OneTouch™ III 300GB:300 GB
Width
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):136 mm
- OneTouch™ III 300GB:217 mm
Height
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):217 mm
- OneTouch™ III 300GB:136 mm
Mac compatibility
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):Yes
- OneTouch™ III 300GB:No
Power requirements
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):100-240 VAC
- OneTouch™ III 300GB:100-240 VAC, 47-63 Hz
I/O ports
- OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0):USB
- OneTouch™ III 300GB:USB 2.0 FireWire 400

Differences highlightedShow differences only

Comparison of OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0), OneTouch™ III 300GB
29 specifications	A Seagate OneTouch III 500GB, Triple Interface(FW 400/800/USB 2.0)View product	B Seagate OneTouch™ III 300GB View product
Hard drive1 differ
HDD capacityDiffers	500 GB	300 GB
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Ports & interfacesidentical
FireWire 800Known for one	Yes	Unknown — not stated by the source
Poweridentical
External power adapterKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	136 mm	217 mm
HeightDiffers	217 mm	136 mm
Other features4 differ
Drive device, transfer rateKnown for one	480 MB/s	Unknown — not stated by the source
Mac compatibilityDiffers	Yes	No
Minimum system requirementsKnown for one	- CD-ROM drive - Internet connection	Unknown — not stated by the source
Power requirementsDiffers	100-240 VAC	100-240 VAC, 47-63 Hz
Compatible operating systemsDiffers	Windows 2000 Professional, XP Professional, XP Home Edition	Windows 2000, XP Mac OS X 10.2.8+
Dimensions (WxDxH)Known for one	136 x 65 x 217 mm	Unknown — not stated by the source
I/O portsDiffers	USB	USB 2.0 FireWire 400
Sustained data rateKnown for one	33 MB/s	Unknown — not stated by the source
Featuresidentical
Plug and PlayKnown for one	Unknown — not stated by the source	Yes

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.