Business laptop display size 173 inch processor intel xeon e3 1505m clock speed 28 display technologies ultra hd 4k resolution of main display 3 840 x 2 160 pixel ram 16 gb hard drive type ssd ssd capacity 512 gb graphics card nvidia quadro m4000m series lenovo thinkpad operating system microsoft windows 7 professional connections 4 x usb 30 video outputs hdmi mini displayport thunderbolt 2 networking lan bluetooth wi fi optical disc drives dv