In the "Are we crazy enough to do this" pages of CES 2017 (company's words, not mine), Razer announced what they call "the world's first triple display laptop". Project Valerie remains a prototype as of this time, but it certainly is an interesting one, particularly for professionals who are frequently on the move and require a humongous amount of screen real-estate.
Project Valerie features three 17.3 inch 4K screens, powered by an NVIDIA GeForce GTX 1080 GPU, natively supporting NVIDIA Surround View with a whopping resolution of 11520 x 2160. The dual screens that flank your lonely, usual laptop screen, can be automatically deployed by a specially-designed hinge mechanism, which allows the two side displays to quickly deploy and lock into place ensuring perfect alignment in "a matter of seconds". Razer says Project Valerie is still just that - a project - but everything passes through a prototyping phase, so we can definitely see this one coming in the future.Source: Thanks @dorsetknob!