Freecom Mobile Drive 31527 external hard drive vs Freecom Mobile Drive 31816 external hard drive

Comparison of 31527, 31816

17 specifications	A Freecom Mobile Drive 31527 external hard drive Model 31527 View product	B Freecom Mobile Drive 31816 external hard drive Model 31816 View product
Hard drive1 differ
HDD capacityDiffers	250 GB	500 GB
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
Type	HDD	HDD
Ports & interfacesidentical
USB connector	USB	USB
USB version	2.0	2.0
Featuresidentical
Product colour	Black	Black
Poweridentical
Bus powered	USB	USB
Operational conditionsidentical
Operating temperature (T-T)	10 - 35 °C	10 - 35 °C
Storage temperature (T-T)	-20 - 70 °C	-20 - 70 °C
Weight & dimensionsidentical
Weight	155 g	155 g
Other featuresidentical
HDD transfer rate	480 Mbit/s	480 Mbit/s
Internal	No	No
Mac compatibility	Yes	Yes
USB required	Yes	Yes
Compatible operating systems	Windows 2000 / XP / Vista / Mac OS X v10.3+	Windows 2000 / XP / Vista / Mac OS X v10.3+
Dimensions (WxDxH)	109.8 x 79.5 x 13.5 mm	109.8 x 79.5 x 13.5 mm

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.