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. Quad core Intel Core i3 Processors with a 3.6 GHz of Speed.
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).
At 6% thinner than its predecessor, the ThinkPad X1 Carbon Gen 7 is only 14.9mm thin—or just a hair more than a half inch—and it weighs only 2.4lb/1.08kg. This lightweight package reinvents portability and untethers you from the office. With a battery life of up to 18.3 hours, and Rapid Charge when you do need more juice, you can go wherever the road—or the sky—takes you*. 
The world’s smallest 15” mainstream business-class notebook lets you get to work faster than ever thanks to its scalable features, powerful performance and ExpressCharge.
The DGS-108 8-Port Gigabit Unmanaged Desktop Switch offers an economical way for SOHO and small and medium businesses to benefit from the increased bandwidth of Gigabit Ethernet. It provides eight Gigabit ports for easy expansion of your network and a quick way to upgrade your network to Gigabit connectivity. 
