• Overview
  • Tech Specs

High-Speed, High-Bandwidth Ports for Fast Data Transfers

Camcorder connected to Allegro FW800Do you work with files stored on external hard drives? You may not be getting the maximum performance from them. Many drive enclosures feature a FireWire 800 (1394b) interface, which provides up to twice the data transfer speeds and bandwidth of FireWire 400 (1394a), both critical attributes when working with multimedia applications. Don’t settle for a slower connection and less than maximum performance; get a Sonnet Allegro™ FW800 FireWire 800 adapter card to take advantage of the extra speed FireWire 800 offers!

Add 3 FireWire Ports Instantly!

Allegro FW800 FireWire ports diagram

Allegro FW800 easily adds 3 FireWire ports—two FireWire 800 and one FireWire 400–– to your Mac or PC. Simply plug the card into an available PCI or PCI-X slot and instantly get access to FireWire speeds!

Key Features

Simple way to add two high-speed FireWire 800 ports and one FireWire 400 port to any compatible computer

Provides fast interface to download videos from your digital camcorder, transfer files to external drives, and more

Easy installation—plug and play(1)

Supports FireWire 400 (a.k.a. i.LINK®, 1394a) devices

Supports hot-swappable device connection—plug in and disconnect peripherals without shutting off your computer


Allegro FW800’s two external FireWire 800 ports guarantee you'll have the right connections for your fastest FireWire peripherals, and the speed and bandwidth required by video and pro audio applications. This card’s external FireWire 400 port makes it simple to connect older FireWire peripherals, no adapter necessary. Allegro FW800 is also supports bus-powered peripherals (devices that can work without a separate power supply, including some scanners and small external drives), so some devices can be plugged in and operate without an extra connection to a power supply. Offering plug and play simplicity(1), this card installs easily in any PCI or PCI-X slot, features hot-pluggable and hot-swappable device connection support with automatic device configuration, and works with all industry standard FireWire 800 and FireWire 400 peripherals.

See Tech Specs Tab for footnotes
Part No.  
FW800A Discontinued
Warranty 1-year
Form Factor PCI computer card
Bus Interface PCI (works in 64-bit or 32-bit PCI or PCI-X slot)
Number of Ports
  • 2 external FireWire 800
  • 1 external FireWire 400
RoHS Compliant Yes
Package Contents
  • Allegro FW800 PCI Computer Card
  • Documentation
FireWire Support  
Standard IEEE 1394b and 1394a compliant
Cables Supported Supports all industry standard FireWire 800 and FireWire 400 peripherals
Peripherals Supported Supports all industry standard FireWire 800 and FireWire 400 peripherals
Data Transfer Rate 800/400/200/100 Mbits/s
Number of Devices Supported Up to 63 (data only)
Hot Plug Supports hot-pluggable and hot swappable device connection
Target Disk Mode Not supported
Chipset TI


Specifications subject to change without notice.



Mac Compatibility

Power Mac® G5 (with PCI or PCI-X slots)

Power Mac G4 (with PCI slots)

Power Mac G3 (Blue & White)

OS X® 10.3-10.5

Mac® OS 9 (at FireWire 400 speed)

PC Compatibility

PC desktop (with PCI or PCI-X slots)

Windows® 8, 7, Vista®(1), XP (SP2)(1)

Technical Notes

  1. Windows XP and Vista require installation of driver for FireWire 800 support.


Mac OS logo Windows logo FireWire logo RoHS Compliant logo