Product comparison · 2 interface cards/adapters

QNAP QM2 CARD vs QNAP QXP-820S-B3408 interface cards/adapter Internal SAS

Key differences

Host interface
- QM2 CARD:M.2
- QXP-820S-B3408 interface cards/adapter Internal SAS:PCI Express
Output interface
- QM2 CARD:PCIe
- QXP-820S-B3408 interface cards/adapter Internal SAS:SAS
Expansion card standard
- QM2 CARD:PCI 3.0
- QXP-820S-B3408 interface cards/adapter Internal SAS:PCIe 3.0

Differences highlightedShow differences only

Comparison of QM2 CARD, QXP-820S-B3408
20 specifications	A QNAP QM2 CARD View product	B QNAP QXP-820S-B3408 interface cards/adapter Internal SAS Model QXP-820S-B3408 View product
Ports & interfaces3 differ
Host interfaceDiffers	M.2	PCI Express
Output interfaceDiffers	PCIe	SAS
Expansion card standardDiffers	PCI 3.0	PCIe 3.0
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Serial interface typeKnown for one	RJ-45	Unknown — not stated by the source
Number of M.2 (M) slotsKnown for one	2	Unknown — not stated by the source
External mini-SAS portsKnown for one	Unknown — not stated by the source	2
Designidentical
Product colourKnown for one	Silver	Unknown — not stated by the source
PurposeKnown for one	PC	Unknown — not stated by the source
Number of fansKnown for one	Unknown — not stated by the source	1 fan(s)
Weight & dimensionsidentical
WidthKnown for one	152.7 mm	Unknown — not stated by the source
DepthKnown for one	68.9 mm	Unknown — not stated by the source
HeightKnown for one	18.9 mm	Unknown — not stated by the source
Featuresidentical
Data transfer rate (max)Known for one	Unknown — not stated by the source	12 Gbit/s
Packaging dataidentical
QuantityKnown for one	Unknown — not stated by the source	1
Other featuresidentical
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
InterfaceKnown for one	Unknown — not stated by the source	Fiber

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.