As long as your machine has Displayport output, you can use this device to convert Display port output to HDMI. But extending your display to 2 monitors has nothing to do with HDMI conversion. You could extended your output just by having the 2 monitors connected to separate video outputs from the computer. This device will only convert ONE of the display port outputs to HDMI. You would an HDMI adapter for EACH display port you would want to convert.