Sonnet Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System

BH #SOECHO3RTB3 • MFR #ECHO-3R-TB3
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Sonnet Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System
Key Features
  • 2 x Thunderbolt 3 Ports
  • 1 x PCIe 3.0 x16 Slot
  • 2 x PCIe 3.0 x8 Slots
  • Supports Full-Height / Full-Length Cards
Enhance your Thunderbolt 3-compatible desktop computer with the Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System from Sonnet. This external rackmount enclosure includes one PCIe 3.0 x16 and two x8 slots, supporting full-height and full-length non-GPU expansions such as network adapters, SSD cards, USB port cards, and more. Configurations include either one double width and one single width card or three single width cards, supported by a 400W internal power supply. An internal 6-pin power connector is available, providing up to 75W of supplemental power to compatible expansion cards. With its dual Thunderbolt 3 ports, you can connect your computer to the Echo III using the included cable and daisy chain multiple devices, transferring data at up to 40 Gb/s with your Windows 10, macOS 10.12.6 or later, and Linux 5.0 or later system.
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Does this take PCIe cards?

Does this take PCIe cards?
Asked by: Zachariah
Yes, the Sonnet Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System has one PCIe 3.0 x16 slot and two PCIe 3.0 x8 slots.
Answered by: Raymond B
Date published: 2021-11-05

Will a DeckLink 8K Pro G2 PCIe card with the HDMI ...

Will a DeckLink 8K Pro G2 PCIe card with the HDMI daughter card fit in this? And if so, will it leave one slot open for use?
Asked by: Elina
Yes, the Blackmagic Design DeckLink 8K Pro G2 Capture Card would fit inside the Sonnet Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System, and you should be left with one open slot to use.
Answered by: Michael S
Date published: 2024-08-07

Besides rack mount, how is this different from ...

Besides rack mount, how is this different from Sonnet Echo Express SE?
Asked by: Bruce
This unit supports full-length cards, while the SE supports half-length cards only. Additionally, Pro Tools HDX cards are supported in this unit but not in the SE unit.
Answered by: Randall
Date published: 2025-08-12

Can you send one PCIe card/slot to one computer, ...

Can you send one PCIe card/slot to one computer, and the second to another computer?
Asked by: Daniel
The Sonnet Echo III Thunderbolt 3 to PCIe Card Rackmount Expansion System can only connect to one computer at a time; the second Thunderbolt 3 port is for daisy-chaining additional Thunderbolt devices.
Answered by: Naftoli G
Date published: 2025-08-17

Does the rack module have the ability to hold two ...

Does the rack module have the ability to hold two of these units? I see in the picture that there's a bay on the left side as well?
Asked by: derek
Sonnet DuoModo Echo III Thunderbolt 3 to PCIe Expansion Module BH #SODMMODE3 MFR #DM-MOD-E3
Answered by: Keith
Date published: 2025-08-17
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