Echo Express III-R Thunderbolt 2-to-PCIe Expansion Chassis, Rackmount, Three Slots model no ECHO-EXP3FR

Use Up to Three PCIe Cards with Computers Lacking Expansion Slots

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
Provides Space for Installing Additional Devices
Using optional Mobile Rack Device Mounting Kits, you can install HDDs, SSDs, a tape or optical drive, and more inside the Echo Express III-R enclosure
When available, upgrade to 40Gbps Thunderbolt 3 Technology with a replacement Thunderbolt interface card
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
New Thunderbolt Cable & ThunderLok Included
Includes Thunderbolt cable and ThunderLok Thunderbolt connector retainer clip to secure cable from accidental disconnections

AVID Qualified for Pro Tools|HDX & HD Native and Media Composer/Symphony

External Connectors
Two Thunderbolt 2 ports
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


  • Three full length, full-height, single-width PCIe cards
Compatible PCIe Cards
Up-to-date PCIe cards listed on sonnet supporting PCIe Card Thunderbolt Compatibility Chart
Mac Compatibility

  Mac with a Thunderbolt or Thunderbolt 2 port

OS X 10.8.5+

macOS Sierra compatible

PC Compatibility

 PC with a Thunderbolt or Thunderbolt 2 port

Windows 10, 8, 7 

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Echo Express III-R Thunderbolt 2-to-PCIe Expansion Chassis, Rackmount, Three Slots model no ECHO-EXP3FR

  • Brand: Sonnet
  • Product Code: ECHO-EXP3FR
  • Availability: 38
  • ₹106,000.00