Apple 21.5-inch iMac with Retina 4K 3.0GHz 6-core 8th-generation Intel Core i5 16GB RAM 512GB SSD Storage (MRT42LL/A) 16GB DDR4 512 GB

Apple iMac 21.5" 4K Display Early 2019 Overview

Apple weds high-res 4K visuals into its sleek 21.5" iMac with Retina 4K Display. In addition to its 4096 x 2304 screen resolution, its display offers 1 billion colors at 500 nits of brightness. The Retina 4K display also features the wider P3 color gamut, which provides a larger color space by utilizing red-green phosphor LEDs that uniformly represent red, green, and blue. And with more available colors, images will appear more vivid and reveal greater detail, with more balance and precision.

The iMac's processing power has been upgraded with an 8th Gen 3.0 GHz Intel Core i5 6-Core processor as well as 8GB of DDR4 RAM. Graphics are powered by a dedicated AMD Radeon Pro 560X graphics card, and for storage, there it's equipped with a 256GB SSD.

Outfitted with Wi-Fi 5 ( 802.11 ac) and a Gigabit Ethernet jack, this iMac can connect to both wireless and wired networks. Other integrated features include Bluetooth 4.2, an SDXC card slot, two 40 Gb/s Thunderbolt 3 ports, four 10 Gb/s USB 3.2 Gen 2 Type-A ports, and a FaceTime HD camera. It also has a Kensington lock slot for added security.

Apple's 21.5" iMac with Retina 4K Display operates on 100-240 VAC at 50-60 Hz and includes an Apple Magic Keyboard, an Apple Magic Mouse 2, a Lightning to USB cable, and a power cord. Protection is covered with 90-days of complimentary technical support and a limited 1-year warranty, which can be extended by purchasing AppleCare+ for Mac.

This Mac comes preloaded with macOS. Updates can be downloaded for free via the Mac App Store. Please check Apple's website for upgrade eligibility.

Retina Display
Bright and Colorful
Available with a 4K resolution of 4096 x 2304, the Retina display shines beautifully on iMac. With one billion colors and 500 nits of brightness, graphics, text, television shows, and movies are sharp and lifelike, while games also display fine details.
True-to-Life Color
The world is full of color, and iMac brings more of them to your screen. The Retina display uses P3 color that shifts away from standard white LEDs to advanced red-green phosphor LEDs. That means all three colors - red, green, and blue - are more equally represented and show off real-world color with more balance and precision, bringing all your photos and content to life more vividly.
Performance
Speed
This iMac is equipped with an 8th Gen 3.0 GHz Intel Core i5 6-Core processor and an AMD Radeon Pro 560X graphics card. Storage moves along quickly too, with a 256GB SSD, so no matter what you're into, you can get it done on your Mac.
macOS
iMac + macOS
MacOS is the operating system that powers everything you do on a Mac. It lets you do things you simply can't with other computers. That's because it's designed specifically for the hardware it runs on - and vice versa. macOS has features inspired by its most powerful users but designed for everyone.
iMac + iPhone
Your iMac works seamlessly with your iPhone. Whether you're texting, snapping a photo, or copying and pasting an image, you can move between devices without missing a beat.
iMac + Apps
Powerful creativity and productivity tools live inside every Mac. These apps will help you explore, connect, and work more efficiently. They include Safari, Photos, Mail, Siri, Calendar, Pages, Numbers, Keynote, News, Messages, FaceTime, and Notes.
App Store
Find even more apps in the Mac App Store, including Microsoft Office 365.
Design
Iconic Design & Advanced Engineering
iMac has always stood out in form and function. It is an elegant, quiet, all-in-one computer that puts everything - display, processor, graphics, storage, memory, and more - inside one simple, stylish enclosure. And thanks to its super-slim profile, which measures 5mm at its edge, it fits in almost anywhere, yet stands out everywhere.
Connectivity
Packed with Ports and Possibilities
Two Thunderbolt 3 (USB Type-C) ports come standard on the iMac, each delivering data transfer speeds of up to 40 Gb/s for external drives and cameras, as well as ample bandwidth for video and display connectivity. Four 10 Gb/s USB 3.2 Gen 2 Type-A ports give you plenty of options for connecting peripherals, including your printer, iPhone, thumb drive, and more. And with fast three-stream WiFi and Bluetooth 4.2 wireless technology, you're instantly connected to all your favorite content.
Turn Your Workspace into a Showcase
Thunderbolt 3 lets you add one 5K display alongside your iMac. Or, you can connect two 4K displays and put over 32 million pixels into play.