New El Capitan beta reveals 4K 21.5

9 to 5 Mac (blog)New El Capitan beta reveals 4K 21.5-inch iMac, Multi-Touch Bluetooth Remote ...9 to 5 Mac (blog)Likely destined for a refreshed version of the 21.5-inch iMac, which currently does not have a Retina display, the new El Capitan beta references Mac support for a new 4096 x 2304 resolution Apple-made display panel. While the larger, more expensive ...