The Samsung LU28E570DS/ZA is a 4K UltraHD monitor that can be used for both gaming and productivity purposes. If you are in the market for a brand new 4K UHD TV that is cheap, then this monitor is now available for $323 on Amazon.
The specs that are packed with the Samsung LU28E570DS/ZA are the following: 28-inch TN panel, 3840 x 2160 4K UHD screen resolution, 16:9 aspect ratio, 1ms response time, 170°/160° excellent wide viewing angles, 370nits brightness, Flicker-free, AMD FreeSync, 60 hz variable refresh rate, Samsung MagicBright, Eye Saver Mode, Eco Saving Plus, Samsung MagicUpscale, Magic Angle, HDMI ports, DisplayPort, 3.5mm headphone jack.
This monitor is great in all types of games, except for competitive fast action titles, as those will not run great at lower refresh rates, which is why you should only get it for slower paced titles.
The monitor's stand ergonomics only allows you to change its tilt angle. If you wish to get better ergonomics, then you can connect the monitor to your desk mount as it is VESA 75x75 compatible. If you want a cheap and reliable 4K UHD gaming monitor, then you can purchase the monitor for only $323.
NOTE: the 75hz variable refresh rate listed on the device's specs web page is wrong and that can be achieved only at lower resolutions, while the 4K UltraHD resolution can only be used with 60hz refresh rate.