Refurbished 21.5-inch iMac 3.6GHz quad-core Intel Core i3 with Retina 4K display
Originally released March 2019
21.5-inch (diagonal) Retina 4K display; 4096-by-2304 resolution with support for one billion colors
32GB of 2400MHz DDR4 memory
256GB SSD storage1
FaceTime HD camera
Radeon Pro 555X
Apple Certified Refurbished Products
Quality products at great prices
Rigorous prior to sale
Covered by Apple’s one-year limited warranty This will open a new window.
Covered by Apple’s 14-day returns policy This will open a new window.
AppleCareThis will open a new window. product can be purchased
Engraving and gift wrap not available for refurbished products
Supplies are limited
What’s in the Box
Refurbished iMac with Retina 4K display
Magic Mouse 2
Lightning to USB Cable
Pretty. Freaking powerful.
The vision behind iMac has never wavered: Transform the desktop experience by fitting powerful, easy-to-use technology into an elegant, all-in-one design. The new iMac takes that idea to the next level — giving you even more amazing tools to do just about anything. iMac is packed with the latest processors, faster memory, and phenomenal graphics. All coming to life on the brightest, most vibrant Retina display ever on a Mac. It’s the total package — powered up.
So bright and colorful, you can’t look away.
Available in stunning 4K or 5K, the Retina display shines beautifully on iMac. With one billion colors and 500 nits of brightness, graphics leap off the screen. Text is razor-sharp. Binge-worthy shows and blockbuster movies have never looked more amazing. Graphics and games dazzle in exquisite detail. It’s simply the best Mac Retina display yet.
Amazingly true-to-life color.
The world is full of spectacular colors, 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.
Graphics that render you speechless.
iMac features robust new Radeon Pro 500X series graphics that make everything you see even more extraordinary. The 27-inch iMac with Retina 5K display is loaded with up to 8GB of dedicated VRAM. And the 21.5-inch iMac with Retina 4K display ignites with up to 4GB. Both deliver visual effects and 3D graphics that exhibit raw power in its most polished form.
Iconic design. Advanced engineering. Talk about modern art.
iMac has always been the ultimate in form and function: 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 superslim profile, it fits in anywhere yet stands out everywhere.
Packed with ports. And possibilities.
Two Thunderbolt 3 (USB-C) ports come standard on all iMac models, each delivering up to 40Gb/s data transfer for external drives and cameras and ample bandwidth for video and display connectivity. Four USB 3 ports give you plenty of options for connecting peripherals, including your printer, iPhone, thumb drive, and more. And with ultrafast three-stream Wi‑Fi and Bluetooth 4.2 wireless technology, you’re instantly connected to all your favorite content.
All your devices. One seamless experience.
Your Mac works with your other Apple devices in ways no other computer can. If you get a call on your iPhone, you can take it on your Mac. With Continuity Camera, you can use your iPhone to take a picture or scan a document nearby, and it will appear right on your Mac. When you copy text or an image from one device, you can paste it into another with standard copy and paste commands. You can even unlock your Mac with your Apple Watch. No password typing required.
macOS. It’s why there’s nothing else like a Mac.
macOS is the operating system that powers every 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 comes with an entire suite of beautifully designed apps. It works hand in hand with iCloud to keep photos, documents, and other stuff up to date on all your devices. It makes your Mac work like magic with your iPhone. And it’s been built from the ground up with privacy and security in mind.
3.6GHz quad‑core 8th-generation Intel Core i3 processor
32GB 2400MHz DDR4 memory
256GB SSD storage1
Radeon Pro 555X with 2GB of GDDR5 memory
Video Support and Camera
FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
One 5120x2880 (5K) external display at 60Hz with support for 1 billion colors, or
Two 3840x2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or
Two 4096x2304 (4K) external displays at 60Hz with support for millions of colors
Thunderbolt 3 digital video output
Native DisplayPort output over USB‑C
Thunderbolt 2, HDMI, DVI and VGA output supported using adapters (sold separately)
SDXC card slot
Four USB 3 ports (compatible with USB 2)
Two Thunderbolt 3 (USB-C) ports with support for:
Thunderbolt (up to 40 Gb/s)
USB 3.1 Gen 2 (up to 10 Gbps)
Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot
3.5 mm headphone jack
Support for Apple iPhone headset with microphone
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible
Bluetooth 4.2 wireless technology
Size and weight
Height: 17.7 inches (45.0 cm)
Width: 20.8 inches (52.8 cm)
Depth: 6.9 inches (17.5 cm) with stand
Weight: 12.3 pounds (5.60 kg)2