Product comparison · 2 external hard drives

ADATA CH-81 external hard drive vs ADATA CH91 external hard drive

11specifications compared
2differ
9identical
10known for one product only

Key differences

Product colour
- CH-81 external hard drive:Black
- CH91 external hard drive:Blue
Dimensions (WxDxH)
- CH-81 external hard drive:82 x 134 x 15.7 mm
- CH91 external hard drive:134 x 82 x 15.7 mm

Side by side

Differences highlightedShow differences only

Comparison of CH-81, CH91
21 specifications	A ADATA CH-81 external hard drive Model CH-81 View product	B ADATA CH91 external hard drive Model CH91 View product
Hard driveidentical
Storage drive buffer sizeKnown for one	8 MB	Unknown — not stated by the source
Ports & interfacesidentical
Maximum data transfer rateKnown for one	Unknown — not stated by the source	480 Mbit/s
Features1 differ
Product colourDiffers	Black	Blue
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Bus poweredKnown for one	Unknown — not stated by the source	USB
Packaging dataidentical
Bundled softwareKnown for one	Unknown — not stated by the source	HDD to go
Cables includedKnown for one	USB	Unknown — not stated by the source
Other features1 differ
Interface typeKnown for one	Unknown — not stated by the source	USB 2.0
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
USB cableKnown for one	Unknown — not stated by the source	USB
Dimensions (WxDxH)Differs	82 x 134 x 15.7 mm	134 x 82 x 15.7 mm
Drive device, transfer rateKnown for one	30 MB/s	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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