BenQ High Performance Gaming XL2720T 27-Inch Screen LED-Lit Monitor The Height Adjustable Stand can be operated with just one finger so you can effortlessly adjust the height of the monitor to suit your sight level. Certified as NVIDIA 3D Vision 2-ready with the new NVIDIA 3D LightBoost technology so you can experience gaming and entertainment like never before Swivel (left/right): 45/45 120Hz Refresh rate Connectors: D-sub/DVI-DL/HDMI/DP; USB Hub Donwstreamx3; Upstreamx1