HP KH888AA interface cards/adapter vs StarTech.com 4 Port ExpressCard 16C950 Serial Card

Comparison of KH888AA, 4 Port ExpressCard 16C950 Serial Card

13 specifications	A HP KH888AA interface cards/adapter Model KH888AA View product	B StarTech.com 4 Port ExpressCard 16C950 Serial CardView product
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	4	—Unknown — not stated by the source
Host interfaceKnown for one	—Unknown — not stated by the source	CardBus
Serial ports quantityKnown for one	—Unknown — not stated by the source	4
Poweridentical
USB poweredKnown for one	Yes	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	101.5 mm	—Unknown — not stated by the source
DepthKnown for one	125 mm	—Unknown — not stated by the source
WeightKnown for one	112.5 g	—Unknown — not stated by the source
Other features2 differ
Data transfer rateDiffers	480 Mbit/s	0.9 Mbit/s
Ports quantityKnown for one	4	—Unknown — not stated by the source
Compatible operating systemsDiffers	Windows Vista/2000/XP	Windows 2000/XP & XP 64-bit/2003 Server & 2003 64-bit/Vista & Vista 64-bit
Weight (imperial)Known for one	0.113 kg (0.25 lbs)	—Unknown — not stated by the source
Connectivity technologyKnown for one	—Unknown — not stated by the source	Wired
I/O portsKnown for one	—Unknown — not stated by the source	4 - DB9 M

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.