i-tec PCRS232 interface cards/adapter vs i-tec PCUSB20 interface cards/adapter USB 2.0

Comparison of PCRS232, PCUSB20

13 specifications	A i-tec PCRS232 interface cards/adapter Model PCRS232 View product	B i-tec PCUSB20 interface cards/adapter USB 2.0 Model PCUSB20 View product
Ports & interfaces1 differ
Host interfaceDiffers	CardBus	PCI
Serial ports quantityKnown for one	1	—Unknown — not stated by the source
Output interfaceKnown for one	—Unknown — not stated by the source	USB 2.0
USB 2.0 ports quantityKnown for one	—Unknown — not stated by the source	5
Designidentical
Product colourKnown for one	Black, Blue	—Unknown — not stated by the source
Other features1 differ
Ports quantityKnown for one	1	—Unknown — not stated by the source
PlatformKnown for one	Laptop	—Unknown — not stated by the source
Connectivity technology	Wired	Wired
Compatible operating systemsDiffers	Windows ME Windows 2000 Windows XP 32bit Windows Vista 32/64bit Windows 7 32/64bit	Microsoft Windows ME/2000/XP/Vista/7
Mac compatibility	No	No
Minimum system requirementsKnown for one	PCMCIA Type II	—Unknown — not stated by the source
Data transfer rateKnown for one	—Unknown — not stated by the source	480 Mbit/s
Featuresidentical
ChipsetKnown for one	—Unknown — not stated by the source	NEC

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.