Description
Overview
With 27” Display (diagonal) Retina 5K Display, a resolution of 5120 x 2880 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 1 Billions of colors and: One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, or Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors.
The Processor on this iMac 27” Early 2019 was upgraded with an 9th Generation 3.6 GHz Intel Core i9 8-Core Processor that can be boost up to 5.0 GHz for a better and fast performance.
The Ram “Memory” with an 8GB of 2666 MHz DDR4 RAM in a 2 x 4GB module that can be upgraded up to 64GB with each 4 x 16GB module in each of the four SO-DIMM slots.
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).
Your hands will enjoy the low-profile, whisper-quiet keys and standard layout with full-size F-keys and number pad. 
Share the freedom of 3G/4G! The TL-MR3420 3G/4G Wireless N Router allows users to share a 3G/4G mobile broadband connection with family and friends via wired or wireless connections. 
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. 
