ZOTAC GeForce GTX 1070 Ti MINI 8GB $349.99

https://www.amazon.com/dp/B076S4RT1J
New Pascal Architecture
8GB 256-Bit GDDR5
Virtual Reality Ready. Supports up to 4 displays
4K ready, game ready
3 x DisplayPort 1.4, 1 x HDMI 2.0B, 1 x DL-DVI-D
I’m going to assume that this is backordered
"In stock on December 22, 2018. "
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AMP edition is also available for $358.99
https://www.amazon.com/dp/B076SBNZ68