The 2-Port Allegro USB 3.0 PCI Express Controller Card from Sonnet is based on the new USB 3.0 standard that offers up to 10 times the performance of the decade-old USB 2.0 interface. A single hard drive with a USB 3.0 interface is capable of transferring data at up to 125 MB/s, while SSDs are capable of even faster transfers. You can install an Allegro USB 3.0 PCIe card into your computer to exploit the full performance potential of these fast drives.
The Sonnet's Allegro USB 3.0 PCIe features a PCIe 2.0 bus interface to take advantage of your computer's fast expansion card slots. Each of this card's ports supports bus-powered storage devices (devices that work without a separate power supply). The Allegro USB 3.0 card also supports hot-swappable storage connections.
Simple way to add two SuperSpeed USB 3.0 ports to a Mac Pro or desktop PC with PCI Express 2.0 slots
Transfers data 10 times faster than USB 2.0 connections
Supports hot-swappable device connection - plug in and disconnect peripherals without shutting off your computer
Mac: Mac Pro supports only USB 3.0 storage devices and Sonnet and Lexar USB 3.0 CompactFlash / SD readers* Mac OS version 10.6+ Mac OS X Lion compatible PC: PC with PCI Express slots (PCI Express 2.0 slots recommended) Windows 7 Windows Vista Windows XP
*The Mac OS X driver for this card does not support USB 2.0 and USB 1.1 devices. iPod, iPhones, USB 3.0 hubs and non-storage devices are not supported.