Echo Express SEL + 1050 Ti low profile?
I can't make heads or tails out of the http://www.sonnettech.com/product/echoexpressseltb3.html specs here. Could you put in a dual slot card or not? Would make a heck of a portable TB3 enclosure.
Lenovo ThinkPad 25 -- GALAX SNPR TB3 1060 -- Lenovo Graphics Dock -- Benq BL2411PT - - two PackedPixels - Dasung not-eReader backer
"The Echo Express SEL - Thunderbolt 3 Edition supports one half-length (up to 6.6 inches long), low-profile, single-width PCIe card; PCIe 1.1, PCIe 2.0 and PCIe 3.0 cards are supported."
That's from the specifications at your link. Doesn't look like it will take a 2-slot card.
"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."
I had the SE 1 version. Sonnet puts the Thunderbolt controller board in front of the PCIe slot to ensure only single width cards can fit.
Under the single width card in the picture is the Thunderbolt daughtercard. Sonnet brags this allows future Thunderbolt upgrades.
If you're determined to use the SEL, you can get a x16 PCIe riser ribbon cable to install a double width GPU. You will then have to find your own way of putting the setup in a custom enclosure.