Key Features • Adds Expansion Card Slots to Any Computer with a Thunderbolt Port—Echo Express supports two half-length (up to 7"), 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 • Power for Powerful Cards—Integrated 100W power supply • Variable Speed Fans—Operate slow and quiet with cooler cards, better cooling for hot cards • Two Thunderbolt Ports—Daisy chain up to six devices to a single port on the host computer • Energy Saver Mode—Powers on/off automatically with the computer • Integrated Universal Power Supply—Built-in power supply means no external power brick to dangle or loose • Rugged Aluminum Housing—Portable protection for any environment Expand Your Adapter Card Possibilities 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 two x16(1) PCIe 2.0 slot and supports two half-length, double-width cards, or single width card with separate I/O bracket. The chassis includes a built-in 100W power supply and three 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. Compatibility For complete Mac compatibility list, visit product's webpage. Note: PCIe adapter cards not included. Chassis requires a Thunderbolt cable, available at the Apple Store. (1) The PCIe slot will physically accommodate up to a x16 PCIe card, however the actual electrical bandwidth of Thunderbolt is x4.