Monitor refresh rates are increasing all the time, and it wasn’t long ago that you’d have to pay in excess of £500 for 240Hz, and it wouldn’t even be possible to combine this with a curved screen. Now, however, AOC is delivering 240Hz refresh with a 27in curved screen, and you can buy it for under £310. There are two variants of this screen – with and without the USB hub. Our sample was the one with USB, the AOC C27G2ZU.