Product comparison · 2 interface cards/adapters

Brainboxes PCI 4 port OPTO RS422/485 vs StarTech.com 2 Port PCI Express 1394a FireWire Card

Key differences

Host interface
- PCI 4 port OPTO RS422/485:PCI
- 2 Port PCI Express 1394a FireWire Card:PCIe
Data transfer rate
- PCI 4 port OPTO RS422/485:921600 Mbit/s
- 2 Port PCI Express 1394a FireWire Card:400 Mbit/s

Differences highlightedShow differences only

Comparison of PCI 4 port OPTO RS422/485, PEX1394A2
16 specifications	A Brainboxes PCI 4 port OPTO RS422/485 View product	B StarTech.com 2 Port PCI Express 1394a FireWire Card Model PEX1394A2 View product
Ports & interfaces1 differ
Host interfaceDiffers	PCI	PCIe
Output interfaceKnown for one	Unknown — not stated by the source	PCI Express x1
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	2
Featuresidentical
ChipsetKnown for one	Unknown — not stated by the source	JMB381
Packaging dataidentical
Package widthKnown for one	Unknown — not stated by the source	142 mm
Package depthKnown for one	Unknown — not stated by the source	175 mm
Package heightKnown for one	Unknown — not stated by the source	30 mm
Package weightKnown for one	Unknown — not stated by the source	160 g
Other features2 differ
Data transfer rateDiffers	921600 Mbit/s	400 Mbit/s
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
Compatible operating systemsDiffers	Windows 98/ NT4/ 2000/ XP/ Server 2003 Windows XP x64 bit Edition / Windows Server 2003 x64 bit Linux	Windows 2000/XP/Vista
I/O portsKnown for one	Unknown — not stated by the source	2 - FireWire 6 pin F
Ports quantityKnown for one	4	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	96 mm	Unknown — not stated by the source
DepthKnown for one	159 mm	Unknown — not stated by the source
WeightKnown for one	97 g	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.