Description
Overview
With 21.5” Display (diagonal) Retina 4K Display, a resolution of 4096 x 2304 that supports for one billion of colors and a 500 nits brightness with Wide color (P3). This iMac simultaneously supports full native resolution on the built-in display at millions of colors (21.5-inch) or 1 billion colors (21.5-inch 4K) with following; one 5120 x 2880 (5K) external display at 60 Hz with support for 1 billion colors, or two 3840 x 2160 (4K UHD) external displays at 60 Hz with support for 1 billion colors, or two 4096 x 2304 (4K) external displays at 60 Hz with support for millions of colors.
The Processor on this iMac 21.5” Early 2019 come’s with 8th Gen. 6-core Intel Core i5 Processors with a 3.0 GHz and can be “overclocked” Turbo Boost up to 4.1 GHz.
The Ports on this iMac are; (Four) USB 3 ports (compatible with USB 2), SDXC card slot, 3.5 mm headphone jack, 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector), (Two) Thunderbolt 3 (USB-C) ports with support for: ( Display port; Thunderbolt (up to 40Gb/s); USB 3.1 Gen 2 (up to 10gb/s); Thunderbolt 2, HDMI, DVI and VGA supported using adapters (Sold Separately).
OptiPlex has over 25 years of experience delivering customer-led innovation for desktops by continuously creating faster and smarter solutions. Featuring versatile, space-saving form factors with customized deployment options and 9th Gen Intel® Core™ processors. 
The ThinkPad USB 3.0 Ultra Dock (40A8) is an universal USB docking solution that not only delivers a premium display experience (up to 4k2k resolution via DisplayPort), but also provides quick and easy connection to all the workspace peripherals you use every day. Simply plug in a single USB 3.0 cable into your Lenovo PC for instant access to up to two external monitors, USB ports, Gigabit Ethernet, headphones/speakers, USB printers, scanners, keyboard, mouse and so on for daily use. The Dock can also charge your mobile devices via two USB always power on ports. 
Share with friends Internet access for up to 11 devices Simultaneously 
