Specialist suppliers of pro audio/video equipment to the film,
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Sonnet Echo Express III-R Thunderbolt 2 to PCIE Expansion Chassis

Rackmount Triple-slot PCIe Over Thunderbolt Chassis

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. 

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£945.00 £787.50 ex VAT
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£945.00 £787.50 ex VAT

Product Description


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.

Featuring 20Gbps Thunderbolt 2 technology that provides sufficient bandwidth to support many of the highest performance and most demanding PCIe cards, the Echo Express III-R delivers maximum performance when connected to a computer with Thunderbolt 2. The III-R is also fully compatible with computers with 10Gbps Thunderbolt technology, supporting the majority of cards at full-performance.


Provides PCIe Card Expansion

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

New Thunderbolt Cable & Lock Included

Includes Thunderbolt cable and Thunderbolt cable lock to secure cable from accidental disconnections


Additional Information


Form Factor: Rackmount

External Connectors: Two Thunderbolt

Internal Connector: 6-pin Mini-Fit Jr (same type as on legacy Mac Pro motherboard; provides up to 75W of power for PCIe cards that require supplemental power)

Expansion Slots :-

  • One x8 mechanical (x8 electrical) PCIe 2.0
  • One x16 mechanical (x8 electrical) PCIe 2.0
  • One x8 mechanical (x4 electrical) PCIe 2.0

PCIe Cards Supported: One full length, full-height, double-width PCIe card, plus one single-width card or Three full length, full-height, single-width PCIe cards

Compatible PCIe Cards: Up-to-date PCIe cards listed on our supporting PCIe Card Thunderbolt Compatibility Chart

Power SupplyUniversal: 300W, 115-230V AC, 50-60 Hz

Operating Temperature: 0˚ C to 35˚ C (32˚ F to 95˚ F)

RoHS Compliant: Yes

Package Contents :-

  • Echo Express III-R chassis
  • Power cord
  • Thunderbolt cable
  • Thunderbolt cable lock
  • Documentation

Dimensions and Weight

  • (WxDxH)19 x 16 x 3.48 in. (48.26 x 40.6 x 8.85 cm)
  • Weight: 19 lbs (8.6 kg)

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