Product comparison · 2 external hard drives

ADATA CH94 640GB vs Samsung S Series HX-DTA20EB external hard drive

13specifications compared
11differ
2identical
15known for one product only

Key differences

The Samsung S Series HX-DTA20EB external hard drive has 1" more HDD size than the ADATA CH94 640GB (3.5" vs 2.5"). The Samsung S Series HX-DTA20EB external hard drive has 32.7 mm more width than the ADATA CH94 640GB (119.5 mm vs 86.8 mm). The Samsung S Series HX-DTA20EB external hard drive has 62.2 mm more depth than the ADATA CH94 640GB (192.8 mm vs 130.6 mm). Only the ADATA CH94 640GB has integrated USB cable. HDD capacity: 640 GB on the ADATA CH94 640GB, 2 TB on the Samsung S Series HX-DTA20EB external hard drive.

HDD capacity
- CH94 640GB:640 GB
- S Series HX-DTA20EB external hard drive:2 TB
HDD size
- CH94 640GB:2.5"
- S Series HX-DTA20EB external hard drive:3.5"
Product colour
- CH94 640GB:Pink
- S Series HX-DTA20EB external hard drive:Grey
Bus powered
- CH94 640GB:USB
- S Series HX-DTA20EB external hard drive:No
Width
- CH94 640GB:86.8 mm
- S Series HX-DTA20EB external hard drive:119.5 mm
Depth
- CH94 640GB:130.6 mm
- S Series HX-DTA20EB external hard drive:192.8 mm
Height
- CH94 640GB:14.5 mm
- S Series HX-DTA20EB external hard drive:41.8 mm
Weight
- CH94 640GB:172 g
- S Series HX-DTA20EB external hard drive:880 g

Side by side

Differences highlightedShow differences only

Comparison of CH94 640GB, HX-DTA20EB
28 specifications	A ADATA CH94 640GB View product	B Samsung S Series HX-DTA20EB external hard drive Model HX-DTA20EB View product
Hard drive2 differ
HDD capacityDiffers	640 GB	2 TB
HDD sizeDiffers	2.5"	3.5"
Type	HDD	HDD
Ports & interfacesidentical
Maximum data transfer rateKnown for one	Unknown — not stated by the source	5000 Mbit/s
USB connectorKnown for one	Unknown — not stated by the source	USB Type-B
USB versionKnown for one	Unknown — not stated by the source	3.2 Gen 1 (3.1 Gen 1)
Ethernet LANKnown for one	Unknown — not stated by the source	No
FireWire 400Known for one	Unknown — not stated by the source	No
FireWire 800Known for one	Unknown — not stated by the source	No
Features1 differ
Product colourDiffers	Pink	Grey
Power1 differ
Bus poweredDiffers	USB	No
External power adapterKnown for one	Unknown — not stated by the source	Yes
Power consumption (standby)Known for one	Unknown — not stated by the source	1 W
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 40 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-20 - 65 °C
Weight & dimensions4 differ
WidthDiffers	86.8 mm	119.5 mm
DepthDiffers	130.6 mm	192.8 mm
HeightDiffers	14.5 mm	41.8 mm
WeightDiffers	172 g	880 g
Other features3 differ
Integrated USB cableDiffers	Yes	No
Internal	No	No
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
MaterialKnown for one	Unknown — not stated by the source	Aluminium
USB 2.0 ports quantityDiffers	1	0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	1
USB requiredKnown for one	Unknown — not stated by the source	Yes
Compatible operating systemsDiffers	Windows 2000, XP, Vista, 7 Mac OS X 10.4 Linux KERNEL 2.4	Windows 2000/XP/Vista/7 Mac OS X 10.4.8+
Dimensions (WxDxH)Known for one	86.8 x 130.6 x 14.5 mm	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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