KitGuru posted a review on the Iiyama ProLite XB3288UHSU-B1 31.5in Professional Monitor
A quote from the article:
It's a 4K panel from iiyama aimed at the professional user - is it any good for £400? The catchily-named XB3288UHSU-B1 bears the usual serious black design of Iiyama ProLite monitors. The basic specification is as expected for a VA panel, with a high 3,000:1 contrast and mid-range 300cd/m2 brightness. Pixel response is a reasonable 3ms, but this is no gaming screen – the maximum refresh at 4K is 60Hz, although you can get up to 75Hz below the native resolution, and AMD FreeSync is supported too.Iiyama ProLite XB3288UHSU-B1 31.5in Professional Monitor Review
While you do get two HDMI inputs and a single DisplayPort, there’s no USB-C input. However, for a business environment there are built-in 3W stereo speakers as well as a minijack output for headphones. There’s also a USB hub with a couple of ports on the side.