P50 156 ci7 6820hq 8gb 512gb ssd nvidia quadro m2000m 4k win7pro win10pro flyer
Lenovo thinkpad p50 20en core i7 6820hq 27 ghz windows 7 professional 64 bit edition windows 10 pro 64 bit edition downgrade 16 gb ram 512 gb ssd no optical drive 156 3840 x 2160 ultra hd 4k nvidi