HP 517721-B21 interface cards/adapter Internal vs HP FX550AV interface cards/adapter

Comparison of 517721-B21, FX550AV

13 specifications	A HP 517721-B21 interface cards/adapter Internal Model 517721-B21 View product	B HP FX550AV interface cards/adapter Model FX550AV View product
Ports & interfaces1 differ
Host interfaceDiffers	PCI	PCIe
Firewire (IEEE 1394) portsKnown for one	—Unknown — not stated by the source	2
Designidentical
InternalKnown for one	Yes	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	36.5 mm	—Unknown — not stated by the source
DepthKnown for one	222.2 mm	—Unknown — not stated by the source
HeightKnown for one	287 mm	—Unknown — not stated by the source
WeightKnown for one	680 g	—Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	36.5 x 222.2 x 287 mm	—Unknown — not stated by the source
Size (imperial)Known for one	3.66 cm (1.44")	—Unknown — not stated by the source
Data transfer rateKnown for one	—Unknown — not stated by the source	800 Mbit/s
Compatible operating systemsKnown for one	—Unknown — not stated by the source	Microsoft Windows XP Professional, Windows XP Home, Windows Vista
Mac compatibilityKnown for one	—Unknown — not stated by the source	No
CompatibilityKnown for one	—Unknown — not stated by the source	Z600

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.