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Allegro USB PCI Express Card 4-Ext + 1-Int USB2 Ports Mac/Wi / Mfr. No.: USB2-E

Allegro USB PCI Express Card 4-Ext + 1-Int USB2 Ports Mac/Wi / Mfr. No.: USB2-E
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Item Number: son-usb2e
Vendor Number: USB2-E
Vendor: Sonnet Technologies
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Simple way to add five USB 2.0 ports to any compatible computer

Easy installation - plug and play - no drivers to install


Supports simultaneous low-, full-, and hi-speed device connections - maximizes performance for each port

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

Everybody's got USB peripherals - keyboards, mice, printers, scanners, joysticks, digital cameras, iPod mobile digital devices, external drives - and there never seems to be enough ports on a computer to plug all of them in at the same time. Problem solved - install a Sonnet Allegro Express USB in your computer to add five more USB 2.0 ports!

Considering a hub? Consider the tradeoffs - every peripheral you plug in has to share a single port's bandwidth (potentially affecting the devices performance), and you may have to plug it into a power outlet as well as your computer in order to operate some devices.

Sonnet's Allegro Express USB adds five full-bandwidth, high-speed USB connections to your computer without the need for an external box or AC power adapter - no trade-offs necessary. Each of this card's five powered ports supports bus-powered peripherals (devices that work without a separate power supply, including some external drives and scanners) and hi-speed data transmission. With no drivers to install, this card offers simple plug and play installation in Mac and Windows computers - Allegro Express USB adds USB connectivity, outside and in, without compromise.

System Requirements

Mac Compatibility

  • Mac Pro
  • Power Mac G5 with PCI Express slots
  • Mac OS X Version 10.3 or later

Windows Compatibility

  • PC with PCI Express slot
  • Windows XP with SP2
  • Windows Vista



  • Bus Interface PCI Express x1
  • Peripherals Supported Supports all industry standard USB 1.1 and USB 2.0 peripheral
  • Cables Supported USB cables with A-type connector
  • USB Support
  • Number of Ports 4 external + 1 internal
  • Standard
  • USB Specification v. 1.0/1.1/2.0 compatible
  • Complies with OHCI (Open Host Controller Interface) and EHCI (Enhanced Host Controller Interface)
  • Data Transfer Rate
  • USB 2.0 - 480 Mbits/s
  • USB 1.1 - 12 Mbits/s
  • Number of Devices Supported Up to 127
  • Hot Plug Supports hot-pluggable and hot-swappable device connection