Asus' 31.5" PQ321 was one of the first 4K desktop monitors on the market. The display's dual-tile nature is a little awkward, though, and the $1500 street price is a little steep. But a single-tile successor dubbed the PA328Q is just around the corner, and Scott reports from CES that it will be "way cheaper" than Asus' first 4K monster.
We don't have an actual price tag just yet, but the 32-incher is coming in April. Its narrow bezels surround an IPS panel with a 3840x2160 resolution, 10-bit color, and 100% coverage of the sRGB and REC.709 color spaces. Asus calibrates the monitor at the factory and promises a Δ E of < 2 with "91-103% uniformity compensation." Other specs include 178° viewing angles, a staple of IPS technology, plus a fairly standard 350 cd/m² luminance rating.
The PA328Q supports 4K input at 60Hz over DisplayPort 1.2 and HDMI 2.0 and at 30Hz via MHL 3.0. The PA328Q likely doesn't have FreeSync-style variable refresh rate, since Adaptive-Sync is part of DP 1.2a. There's no mention of G-Sync support on the spec sheet, either.
In all, the monitor has five digital inputs: full-sized and Mini DisplayPort, two HDMI 1.4, and one HDMI 2.0. A four-port USB 3.0 hub is also included.