Echo Express III-D
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FAQ (5)
IDArticle TitlePost Date
1000 The Avid HDX card doesn't work in the Thunderbolt 3 editions of Echo Express III-D or III-R. What can I do?May-16-22
Sonnet offers special Echo Express III-D and III-R Thunderbolt 3 HDX editions that supports the AVID HDX card.

If you have already own a Echo Express III Thunderbolt 3 standard edition you need to install a Thunderbolt 2 upgrade card in your Echo Express III Thunderbolt 3 Edition chassis, and use with an Apple Thunderbolt 3-to-Thunderbolt 2 Adapter. As a courtesy, we are offering a 25% discount code (AVIDTB2) on the Thunderbolt 2 upgrade card for customers in this situation.

The Echo Express III-D or III-R Thunderbolt 2 Edition with a Thunderbolt 3 upgrade card supports the AVID HDX card.

The Echo Express III-D or III-R Thunderbolt 2 Edition with an Apple Thunderbolt 3-to-Thunderbolt 2 Adapter supports the AVID HDX card.
 
1010 Is there Windows 10 and 11 Support for Echo Express SE III/IIIe, Echo Express III-D/R Thunderbolt 3 Editions?Nov-25-22
1153 I'm having unusual issues with my Blackmagic Design Decklink CardNov-30-23
1161 I am having an issue with the Blackmagic Quad HDMI recorder card.Nov-30-23
The problems can be very different (some ports fail, multiple cards in the same chassis have issue, video distortion, video/audio lag, etc.)

Update the firmware on the BMD card to the current version, and the issue in the Echo Express will be resolved on both Windows and macOS.
 
1196 One of my PCIe cards is not showing up when Connected to an M1 or M2 Mac.Sep-08-22
When you boot an M1 or M2 Mac with a multi-slot PCIe Expansion Chassis connected —AND— you have a monitor or USB device connected to the downstream port of the PCIe expansion chassis, one of the PCIe cards may not enumerate.

Solution: After booting, Plug in PCIe chassis, monitor or USB device.