Many of the Precision models allow for four 4K displays -- the Precision 5770, etc.  [URL] 
Hi,I wanted to get a new laptop, thinking about a new Alienware x16/m16. But I need to connect four 4K[NAME] displays to it. And in the support manual, it is showing that only two monitors are supported.  I also have a dock: WD22TB4, will it work with X16/M16? Can I connect four monitors with it (4k[NAME])? Also, I'm a bit confused about TB: For M16 it is listed like this:2 Type-C Port (Thunderbolt™ 4.0, USB 4 Gen 2, DisplayPort 1.4, and 15W Power Delivery (3A/5V) capabilities)For X16:1 Thunderbolt™ 4 port with Power Delivery and DisplayPort™So it is the same port on X16? With DP 1.4 and USB 4 Gen2, or it is some older version?
x16/m16, question about multi-monitor support?