Chieftec CRD-501 card reader USB 2.0 Black vs Samsung SFD-321F/NB card reader Internal Black

Comparison of CRD-501, SFD-321F/NB

12 specifications	A Chieftec CRD-501 card reader USB 2.0 Black Model CRD-501 View product	B Samsung SFD-321F/NB card reader Internal Black Model SFD-321F/NB View product
Performanceidentical
Supported drive bays	3.5"	3.5"
Data transfer rateKnown for one	480 Mbit/s	—Unknown — not stated by the source
Product colour	Black	Black
Plug and PlayKnown for one	Yes	—Unknown — not stated by the source
InternalKnown for one	—Unknown — not stated by the source	Yes
Ports & interfacesidentical
InterfaceKnown for one	USB 2.0	—Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	270 g	—Unknown — not stated by the source
System requirements1 differ
Compatible operating systemsDiffers	Windows98/98SE/ME/2000/XP/Vista Mac 9.x Linux 2.4	Windows 2000 SP3/XP SP1/Vista
Other featuresidentical
Dimensions (WxDxH)Known for one	101 x 91 x 25 mm	—Unknown — not stated by the source
Number of slots	4	4
Technical detailsidentical
USB powered	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	—Unknown — not stated by the source	15 - 35 °C

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.