The Allegro 4-Port USB 3.0 PCI Express Card from Sonnet is a PCI Express card equipped with four external SuperSpeed USB 3.0 ports, with a PCIe 2.0 bus interface that allows you to take advantage of your computer's fast expansion card slots. This card installs easily into any PCI Express slot that supports a full-height card, and works with all USB-IF compliant USB 3.0 and USB 2.0, peripherals.Supports hot-pluggable and hot-swappable device connection-plug in and disconnect peripherals without shutting off your computerQuick and easy installation into any available PCIe slotUSB attached SCSI protocol supported under OS X 10.8.5+ and Windows 8.1+Optimized for Thunderbolt - Provides maximum performance over Thunderbolt.

• Adds USB Connectivity
• Dedicated Controller