Chieftec CRD-501 card reader USB 2.0 Black vs Chieftec CRD-501D card reader USB 2.0 Black

Comparison of CRD-501, CRD-501D

13 specifications	A Chieftec CRD-501 card reader USB 2.0 Black Model CRD-501 View product	B Chieftec CRD-501D card reader USB 2.0 Black Model CRD-501D View product
Performanceidentical
Data transfer rate	480 Mbit/s	480 Mbit/s
Product colour	Black	Black
Plug and Play	Yes	Yes
Supported drive baysKnown for one	3.5"	—Unknown — not stated by the source
Ports & interfacesidentical
Interface	USB 2.0	USB 2.0
SIM card supportKnown for one	—Unknown — not stated by the source	No
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	101 mm
HeightKnown for one	—Unknown — not stated by the source	25 mm
Weight	270 g	270 g
System requirements1 differ
Compatible operating systemsDiffers	Windows98/98SE/ME/2000/XP/Vista Mac 9.x Linux 2.4	Windows98/98SE/ME/2000/XP/Vista Mac OS 9.x Linux 2.4
Other featuresidentical
Number of slots	4	4
Dimensions (WxDxH)Known for one	101 x 91 x 25 mm	—Unknown — not stated by the source
Technical detailsidentical
USB powered	Yes	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.