UPC/EAN #732311012938     MPN #ECHO-EX-SE3E-T3    


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3-slot desktop Thunderbolt 3 expansion system for PCIe cards

Connect Three Full-height, Half-length+ PCIe Cards to Computers with Thunderbolt 3 Ports Although thin Mac, Windows and Linux computers with Thunderbolt 3 ports offer processing power to spare, for many (such as pros in the creative fields) onboard processing power alone is not enough. Sonnet's Echo Express SE III is a compact, desktop Thunderbolt 3 to PCIe card expansion system that enables you to connect three professional PCIe cards at the same time to any computer with Thunderbolt 3 ports.
Connect PCIe Cards
Use multiple high-performance PCIe cards with any computer with a Thunderbolt 3 port.

Three PCIe 3.0 x8 Slots
Supports three full-height, half-length+ (up to 7.75 inches long), single-width cards, or one double-width card plus one single-width card.

40Gbps Thunderbolt 3 Interface
Offers 2750 MB/s of PCIe bandwidth, doubling the performance capabilities of Thunderbolt 2.

Pro Performance. Compact Design.
Takes up little space on the desktop, but large enough to support nearly every Thunderbolt-compatible PCIe card, at full performance.

Two Thunderbolt 3 Ports
One port connects to computer; second port supports daisy-chaining of up to five additional Thunderbolt peripheral devices.

Temperature-controlled Fan
Automatically operates slower and quieter with cooler cards; provides better cooling for hotter cards.

Energy Saver Mode
Powers on/off automatically with the computer.

Rugged Aluminum Housing
Provides robust and secure protection.

Power for Peripherals
Daisy chain port provides up to 15W of power to connected peripherals.
Form Factor
Desktop expansion system

External Connectors
Two Thunderbolt 3 ports
12V power port

Expansion Slots
One x8 mechanical (x4 electrical) PCIe 3.0
Two x8 mechanical (x8 electrical) PCIe 3.0

PCIe Cards Supported
One half-length+ (up to 7.75 inches long), double-width, full-height x8 PCIe card, plus one single-width card or
Three half-length+, single-width, full-height x8 PCIe cards

Power Adapter
Universal 120W, 100-240V, 50-60 Hz

Mac Compatibility
  • Mac with Thunderbolt 3 ports
  • Mac with a Thunderbolt 2 or Thunderbolt port with an Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter plus a Thunderbolt 2 cable (both sold separately)
  • macOS 10.12.6+
  • macOS Big Sur compatible

  • Windows Compatibility
  • See FAQ (for SE III/III-D & III-R Thunderbolt 3 Editions)

  • Linux Compatibility
  • Linux computer with Thunderbolt 3 ports
  • Linux Kernel 5.0+

  • PCIe Card Compatibility
    For a list of compatible PCIe cards, view PDF of Sonnet's PCIe Card Thunderbolt Compatibility Chart
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