Tech Specs

Product Specfications

Mac, Windows, and Linux logos.

Compatibility

Mac Compatibility

  • Mac with Thunderbolt 5, Thunderbolt 4, Thunderbolt/USB4, or Thunderbolt 3 ports
  • macOS 15+; compatible with macOS 27

Windows Compatibility

  • Windows computer with Thunderbolt 5, Thunderbolt 4, or USB4 ports
  • Windows 11 25H2+
  • Windows Server 2025

Linux Compatibility

  • Linux computer with Thunderbolt 5, Thunderbolt 4, or USB4 ports
  • Supported Linux kernel, 6.6 or later

PCIe Card Compatibility

For a list of compatible PCIe cards, see the following PDF

PCIe cards compatibility PDF download link.

Hardware

Part Number

  • ECHO-3D-T5

Warranty

  • 2-year

Form Factor

  • Thunderbolt desktop enclosure

External Connectors

  • Two Thunderbolt ports
  • Power (C14-type)

Thunderbolt 5 Computer Ports

Thunderbolt 5 performance requires a Thunderbolt 5 cable connected to a Thunderbolt 5 computer port.

  • Cables Supported
  • Thunderbolt 5 cables
  • Cables Not Supported
  • Thunderbolt optical cables are not supported

Thunderbolt 5 Peripheral Ports

Note that the downstream ports are not necessarily Thunderbolt 5 ports; they are the same as the host ports (Thunderbolt 5, Thunderbolt 4, or USB4).

  • Connectivity
  • With USB-C connector
  • Peripherals Supported
  • Thunderbolt 5, 4, 3 devices
  • USB4, 3, 2 devices
  • Thunderbolt 5, 4, 3, and USB-C monitors
  • DisplayPort and HDMI monitors (Thunderbolt compatible adapter required, sold separately)

Internal Connectors

  • One 6-pin auxiliary power; provides up to 75W of power for PCIe cards that require supplemental power

Expansion Slots (Facing Rear, Left to Right)(1)

  • One x8 mechanical (x8 electrical) PCIe 3.1
  • One x16 mechanical (x8 electrical) PCIe 3.1
  • One x8 mechanical (x4 electrical) PCIe 3.1

PCIe Cards Supported

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

Power Supply

  • Universal 400W, 115-230V AC, 50-60 Hz

Operating Temperature

  • 0ºC to 35ºC (32ºF to 95ºF)

Dimensions (WxDxH)

  • 3.5 x 16.7 x 9 in. (8.9 x 42.4 x 22.9 cm)

Weight

  • 9.7 lbs (4.40 kg)

Package Contents

  • Echo III T5 Desktop System
  • Region-specific power cable
  • 6-pin PCIe auxiliary power cable (installed)
  • 0.8-meter Thunderbolt 5 cable
  • ThunderLok-A connector lock (for securing Thunderbolt cable)
  • Documentation

Support Links

Support Knowledge Base

Echo III T5 Desktop Thunderbolt 5 Expansion System Support

Product Documentation

Echo III Desktop Thunderbolt Expansion System documentation PDF download link.

Technical Notes

  • When set to HDX compatibility mode, PCIe slots operate in PCIe 2.0 mode and the chassis’ bandwidth is limited to 1750 MB/s.

Accessories

for Echo III Desktop Thunderbolt Expansion System

Product Accessories

Thunderbolt cables.

Sonnet Thunderbolt Cables

  • Deliver full supported Thunderbolt bandwidth
  • Rated at 240W
  • Compatible with Sonnet ThunderLok-A connector lock
Thunderloks.

ThunderLok-A

Part No. TB-LOK-A

Connector lock for securing compatible Sonnet Thunderbolt cables

Echo II DV T5 Expansion Module.

Echo III T5 Expansion Module

Part No. DM-MOD-E3T5

  • 3-slot PCIe expansion module
  • Same module used in Echo III T5 Expansion Systems
Echo II DV T5 Expansion Module.

Echo II DV T5 Expansion Module

Part No. DM-MOD-E2DVT5

  • 2-slot PCIe card expansion module with dual Thunderbolt 5 interfaces
  • Same module used in Echo II DV T5 Expansion Systems
xMac mini (2024+) Expansion Module.

xMac mini (2024+) Expansion Module

Part No. XMM-MOD

  • Housing enclosure for one or two Mac mini (2024+) computers
  • For use in second mounting space in Sonnet rackmount expansion enclosures
xMac mini (2018-2023) Expansion Module.

xMac mini (2018-2023) Expansion Module

Part No. DM-MOD-ZM

  • Mac mini (2018-2023) housing enclosure with integrated Thunderbolt SSD storage dock
  • For use in second mounting space in Sonnet rackmount expansion enclosures
xMac mini (2018-2023) Expansion Module.

Dual-Module Rackmount Enclosure

Part No. DM-ENC-2M-R

  • Rugged steel 2U rackmount enclosure for Sonnet expansion modules
  • Same enclosure used in Sonnet Echo and xMac Rackmount Expansion Systems

Videos & Reviews

Echo III T5 Desktop Thunderbolt Expansion System