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Sonnet Echo Express

Sonnet’s Echo Express Thunderbolt Expansion Chassis enables you to connect one or two high-performance PCIe 2.0 cards (sold separately) to any computer with a Thunderbolt port. Imagine using full-size professional video capture, audio interface, 8Gb Fibre Channel, 10 Gigabit Ethernet, and RAID controller cards with your iMac®, Mac® mini, MacBook® Air or MacBook Pro computer.

Echo Express includes one x16(1) PCIe 2.0 slot and supports one half-length, double-width card, or single width card with separate I/O bracket. The chassis includes a built-in 100W power supply and two variable speed fans to quietly keep cards cool, only speeding up as needed to cool the hottest cards. Two Thunderbolt ports support daisy chaining of up to six devices to a single port on your computer.


  • Adds Expansion Card Slots to Any Computer with a Thunderbolt Port—Echo Express supports one half-length (up to 7.75"), full-height, double-width, x16(1) PCIe 2.0 card.
  • High Bandwidth—With Thunderbolt’s PCI Express performance and 10Gb/s of throughput on each of the two channels in both directions, Echo Express is perfect for special-purpose PCIe cards for video capture, audio interface, 8Gb Fibre Channel, 10 Gigabit Ethernet, digital audio, RAID control, and more.
  • Variable Speed Fans—Operate slow and quiet with cooler cards, better cooling for hot cards.
  • Energy Saver Mode—Powers on/off automatically with the compute.

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