https://www.cnx-software.com/2019/11/19/orange-pi-4-4b-sbc-rockchip-rk3399-soc-gyrfalcon-2801s-npu/

 

Oh boy, like we hadn't RK3399's enough by now  
My thought, it's rather sh*t. Too late, nothing new. And having no full USB3 port with the NPU model isn't a good trade off. Then just use a USB NPU instead. 

Would love to see someone putting an RK3399K into a board. Small difference, but enough to make my eyes sparkle up. I want more new, not more of the same. 

Hmm yea something like size of "NanoPi NEO Core2-LTS" and instead equip with 2 or 4Gb of RAM including RK3399 would be nice for my scenario.

The NEO4 has only 1Gb and also no need for BT and WiFi, supply as possible add on.

Perhaps something for Shenzhen Xunlong Software CO.,Limited to manufacture?

 

I was really interested in the RK3399Pro until I saw the NPU chip they used on this PI4 is much more powerful than the RK3399Pro.
But there is one module/evaluation board somewhere with the Pro version and HDMI-IN. I can't find it now, but it does exist, and I would love to try it. There also is the db3399-pro which is tempting...

@NicoD: I am also interested in seeing a RK3399K version one of these days.