Update (7/16 2:05pm): Down to $549 shipped from green-sum via eBay Daily Deals (or $569.99 at Amazon)

As its Extreme Deal of the Day, NCIX offers the Samsung 28-inch 4K UHD LED 60Hz Monitor (model U28D590D) for $539.99 with free shipping. That’s $170 under list, $113 better than Amazon direct’s current asking price, and the best deal price we have ever seen by $40.

It features two HDMI 1.4 and one DisplayPort, audio out, and introduces a slick brushed metal look with thin bezels and a T-shaped stand that minimizes the machine’s overall footprint. Also included is a new “Picture-by-Picture” mode that lets you “connect two PCs to the same monitor and see the desktops of both simultaneously on one screen that’s divided into two.”

Amazon reviewers rate it 4.0 out of 5 stars and during our review we found that…

[It] is a phenomenal monitor, especially for the price. 4k is the future of display technology, and Samsung being able to launch a 60Hz 4k monitor for $680 is incredibly impressive. The 4k Seiki display got us excited for 4k and its potential, but the limited refresh rate meant that using it as an actual monitor was unlikely. Although the Samsung is a bit more pricey than the Seiki, and of course smaller, the extra money for 60Hz is well worth it.