This message was posted on behalf of Intel Corporation
Suter, Thank you very much for joining the Intel® Graphics communities.
To answer your question, the maximum quantity of displays supported simultaneously on the Intel® HD 530 graphics controller are 3, so the option to use 4 monitors will not be available, as you can confirm on the following link, look for graphics specifications:
Also, please check the following document, it is the datasheet for Intel® HD 530 graphics controller and it shows the multiple displays configuration supported, page 42:
Additionally on the link below you will find further information about a triple display configuration:
Now, if you need 4 monitors you can use a dual display configuration on one PC and then the same configuration on another PC, you will need to use 2 desktop PC’s though, and remember that the different formats for you to choose on this scenario are: single, clone, extended and collage.
Any further questions, please let me know.