OWC 12.4

Sonnet offers speed via USB 3.0 PCIe adapter card, powered ports

Sonnet is offering the Allegro Pro USB 3.0 PCIe card, a four-port, four-controller SuperSpeed USB 3.0 PCI Express 2.0 adapter card with charging capabilities. The Allegro card allows users a simple path to adding four USB 3.0 ports, each providing 5Gbps bandwidth to Mac Pro and Windows computers with PCIe slots, and to Thunderbolt-to-PCI Express card expansion chassis.

This pro adapter card supports bus-powered hard drives, SSDs, DVDs and Blu-ray devices through each of its ports and supports simultaneous sync and charge of iPad mobile digital devices and other devices that support USB 3.0 charging.

A typical USB 3.0 adapter card uses a single USB 3.0 controller chip, splitting its bandwidth among two to four ports. For users wishing to copy files between drives connected to the card, bandwidth sharing has a measurable impact on data-transfer speed potential. The Allegro card comes with four independent USB 3.0 controllers, with each port receiving its own dedicated bandwidth. This allows the Sonnet pro card to support data transfers up to 450MB/s per port and up to 1800MB/s aggregate for the card, enabling high-speed data transfers between connected drives.


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