Literally first day, the monitor shows a black screen and I just hope the problem will fix itself but then day two same thing happens, black screen. Even time now I start up my computer it won’t load and i just bought a brand new 4K monitor so I know that wasn’t a the problem. Honestly a bit disappointed because I see that there is a 90 day no satisfaction refund guarantee but I doubt that it’s going to happen. Just sad that i was so satisfied with amazons delivery but so disappointed the product. Basically don’t buy this it doesn’t work they don’t fix the problems and I feel like I wasted $133 bucks....