Brainboxes PX-101 interface cards/adapter vs Brainboxes PX-257 interface cards/adapter

Comparison of PX-101, PX-257

15 specifications	A Brainboxes PX-101 interface cards/adapter Model PX-101 View product	B Brainboxes PX-257 interface cards/adapter Model PX-257 View product
Ports & interfacesidentical
Host interface	PCIe	PCIe
Serial ports quantity	2	2
Connector(s)Known for one	—Unknown — not stated by the source	DB9 M
Design1 differ
Product colour	Green	Green
CertificationDiffers	ROHS, CE	CE, METL, RoHS, WEEE
Weight & dimensionsidentical
WidthKnown for one	110 mm	—Unknown — not stated by the source
DepthKnown for one	70 mm	—Unknown — not stated by the source
HeightKnown for one	15 mm	—Unknown — not stated by the source
WeightKnown for one	51 g	—Unknown — not stated by the source
Other featuresidentical
Data transfer rate	0.9 Mbit/s	0.9 Mbit/s
Ports quantity	2	2
Connectivity technology	Wired	Wired
Compatible operating systems	Win Server 2003, Server 2008, XP, Vista	Win Server 2003, Server 2008, XP, Vista
Mac compatibility	No	No
Power requirementsKnown for one	3.3V	—Unknown — not stated by the source

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.