Is there a separate power header to provide adequate 12V to the Firewire ports?

Yes. Card has a SP4 (4 pin; Small Drive Power) Male header, i.e. floppy drive power header. Described in more detail at the StarTech website.

What type of FireWire ports does this card offer and what are their transfer rates?

This card offers two 9-pin FireWire 800 ports with transfer rates up to 800Mbps and one 6-pin FireWire 400 port with transfer rates up to 400Mbps.

What are the physical dimensions and weight of this FireWire card?

The physical dimensions of the FireWire card are 0.80 inches x 2.30 inches x 3.50 inches, and it weighs 1.40 ounces.

Is this FireWire card compatible with my operating system?

Yes, this FireWire card is compatible with various operating systems including Windows 2000, XP, Vista, 7, 8, 8.1, 10, Windows Server 2003, 2008 R2, 2012, 2016, Mac OS versions 10.6 to 10.12, and Linux versions from 3.5.x to 4.4.x LTS.

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StarTech.com 3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter Model PEX1394B3LP

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Model: PCIe to FireWire

Mini PCIe to FireWire
PCIe to FireWire

Add 2 native FireWire 800 ports to your low profile/small form factor computer through a PCI Express expansion slot C 3 Port PCI Express FireWire Card C PCIe FireWire Adapter Card
Includes full/standard profile installation bracket
2x FireWire 800 and 1x FireWire 400
Native PCI Express chipset

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Add 2 native FireWire 800 ports to your low profile/small form factor computer t

Model
Brand	StarTech.com
Model	PEX1394B3LP

Details
Type	PCI Express to 1394 Card
External 1394 Ports	2 x 1394b 1 x 1394a
Standard	1394A x 1/1394B x 2
Data Transfer Rate	FireWire 800 IEEE-1394b - 800 Mbit/s
Operating Systems Supported	Windows 2000, XP, Vista, 7, 8, 8.1, 10, Windows Server 2003, 2008 R2, 2012, 2016, Mac OS 10.6 to 10.12, Linux 3.5.x to 4.4.x LTS Versions Only

Features
Features	Two 9-pin FireWire 800 ports, each with transfer rates up to 800Mbps One 6-pin FireWire 400 port, each with transfer rates up to 400Mbps Includes full/standard profile installation bracket Built with a native PCI Express chipset, no bridge chip Internal power connector for high-powered FireWire devices Compliant with IEEE 1394b and backwards compatible with IEEE 1394a - 2000 as well as 1394-1995 standards Plug-and-Play and hot-swap compatible

Dimensions & Weight
Dimensions	0.80" x 2.30" x 3.50"
Weight	1.40 oz.

Additional Information
First Listed on Newegg	February 07, 2026

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StarTech.com 3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter Model PEX1394B3LP

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Item#: 9SIA6ZPKS44038

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StarTech.com 3 Port 2b 1a Low Profile 1394 PCI Express FireWire Card Adapter Model PEX1394B3LP

Learn more about the STARTECH PEX1394B3LP

Customer Reviews of the STARTECH PEX1394B3LP

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

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Manufacturer Contact Info