Product comparison · 2 interface cards/adapters

HP BW851AA interface cards/adapter Internal IEEE 1394/Firewire vs HP QT587AA interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1)

4specifications compared
2differ
2identical
10known for one product only

Key differences

Output interface
- BW851AA interface cards/adapter Internal IEEE 1394/Firewire:IEEE 1394/Firewire
- QT587AA interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1):USB 3.2 Gen 1 (3.1 Gen 1)
Ports quantity
- BW851AA interface cards/adapter Internal IEEE 1394/Firewire:2
- QT587AA interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1):4

Side by side

Differences highlightedShow differences only

Comparison of BW851AA, QT587AA
14 specifications	A HP BW851AA interface cards/adapter Internal IEEE 1394/Firewire Model BW851AA View product	B HP QT587AA interface cards/adapter Internal USB 3.2 Gen 1 (3.1 Gen 1) Model QT587AA View product
Ports & interfaces1 differ
Host interface	PCIe	PCIe
Output interfaceDiffers	IEEE 1394/Firewire	USB 3.2 Gen 1 (3.1 Gen 1)
Firewire (IEEE 1394) portsKnown for one	2	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one	Unknown — not stated by the source	4
Internal USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	2
Designidentical
Internal	Yes	Yes
System requirementsidentical
Windows operating systems supportedKnown for one	Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64	Unknown — not stated by the source
Minimum RAMKnown for one	128 MB	Unknown — not stated by the source
Minimum processorKnown for one	Pentium III	Unknown — not stated by the source
Minimum storage drive spaceKnown for one	1000 MB	Unknown — not stated by the source
Other features1 differ
Transfer rateKnown for one	800 MB/s	Unknown — not stated by the source
Ports quantityDiffers	2	4
Data transfer rateKnown for one	Unknown — not stated by the source	5 Gbit/s
Weight & dimensionsidentical
WeightKnown for one	Unknown — not stated by the source	49 g

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.

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