Today's ultra-light notebooks, mini, and all-in-one desktop computers now have tremendous processing power–power that
many thought would only be possible in full-size workstation or large desktop computers.
Smaller in size and more portable, they're very desirable. For pros in the creative fields, processing power alone is not enough.
A prime example is the new Mac Pro. Proven to be a processing powerhouse and packed with Thunderbolt 2 and USB 3.0 ports,
it lacks the PCIe expansion slots necessary to install specialty cards to connect various video and audio inputs, for transcoding data,
and to connect to high-speed storage and networks.
With the Echo Express III-R, Sonnet has created a solution that leverages the paradigm shift enabled by Thunderbolt technology,
allowing PCIe expansion slots to be connected outside a computer.
This rackmount Thunderbolt-to-PCIe card expansion chassis makes it possible for you to connect three professional video capture,
audio interface, SAS or SATA HBA, 16Gb or 8Gb Fibre Channel, 10 Gigabit Ethernet, and RAID controller PCIe cards to any Mac® with a Thunderbolt port

Key Features:

• Use PCIe Expansion Cards with Computers Lacking PCIe Slots—Use high-performance PCIe cards with Thunderbolt-equipped computers
• Thunderbolt 2 Interface—Maximum performance with computers with Thunderbolt 2 technology, backward compatible with host
computers and other devices equipped with 10Gbps Thunderbolt technology
• Three PCIe Slots—Supports three full-length, full-height, single-width cards, or one double-width card plus one single-width card
• Remarkably Quiet—Large, temperature-controlled, variable-speed fans that automatically cool the cards, plus computer-modeled
design that reduces airflow turbulence and velocity, combine to provide quieter cooling for all cards
• Integrated Universal Power Supply—Built-in 300W power supply with 75W auxiliary power connector
• Rugged Steel Housing—Provides robust and secure protection for any environment
• Every Thunderbolt-Compatible Card Supported—Works with every Thunderbolt-compatible PCIe card, regardless of length or height
• 5-Year Warranty Included at No Extra Cost—No extra charge for full 5-year warranty ECHO-EXP3FR