How to do I connect 3 external monitors to my surface pro 7?

Did you plug the usb mouse directly into suface?

I can connect my surface pro 7 i7 16 gig memory to 3 other monitors. using my docking station for 2 monitors and a usb 3 to vga from my 3 monitor. however the vga monitor has some major mouse lag. any ideas on how to fix the mouse lag?

The third monitor should use wireless display adopter:

https://www.microsoftestore.com.hk/partner/product/MS-4K-Wireless-Display-Adapter?locale=en\_HK

But monitor is 30 Hz refresh rate only. (The color is not the same)

Or try this one 

https://www.microsoftestore.com.hk/partner/product/wireless-display-adapter-new?locale=en\_HK

Very helpful. Can you confirm you are extending to all 4 displays and not mirroring on any of them using the wireless HDMI adapter? I can get 3 external monitors but not the Surface (pro 6) which I didn't think was an issue until I realized none of my monitors have sound. I would prefer my setup to look exactly like yours with the surface in the middle as long as each of the 4 screens works independently and doesn't just replicate another display.

Thanks!

All 4 are independent. I’ll try to post some pics of the cabling when i get a moment. 

Michael, did you get a chance to post a picture of the cabling?

I have connected 2 monitors to the Surface dock and a third into the Surface itself, but it doesnt allow me to use the surface as a screen. 

How were you able to extend display onto all 4 screens?

I use this one

https://www.microsoftestore.com.hk/partner/product/MS-4K-Wireless-Display-Adapter?locale=en\_HK

but the Wireless display monitor is 30 Hz refresh rate only. (The color is not the same)

How about your monitor? What is the refresh rate? do you use this one?

https://www.microsoftestore.com.hk/partner/product/wireless-display-adapter-new?locale=en\_HK

I use the Surface Pro 7, three extra monitors use 1920 x 1080.