Key Benefits • Spare Interface Card for Qio and Qio E3—Works with Sonnet's professional media readers • Fast— Extends PCI Express bus interface to deliver superior performance; aggregate bandwidth of 400MB/sec. (Qio E3) or 200MB/sec. (Qio) Route to the Outside Sonnet's Express Bus Extender PCIe 2.0 expands the PCI Express bus outside your computer. Install the Express Bus Extender PCIe 2.0 adapter in your desktop computer and connect  your Qio or Qio E3 Professional Media Reader for use in the office or studio. Mac Compatibility • Mac Pro (with PCIe slot) • Mac OS® X Version 10.5+ • Mac OS X Lion compatible Windows Compatibility • Desktop computer with PCIe slot • Windows® 7 • Windows Vista®