The iMac “Core i3” 3.6 21.5-Inch Aluminum (Retina 4K, 2019/Coffee Lake) features a 14-nm “Coffee Lake” 3.6 GHz Intel “Core i3” processor (I3-8100) with four independent processor “cores” on a single chip, a 6 MB shared level 3 cache, 8 GB of 2400 MHz DDR4 SDRAM that is reportedly “built into the computer” — but it actually can be upgraded later, it is just needlessly difficult — a 1 TB (5400 RPM) hard drive, and a Radeon Pro 555X graphics processor with 2 GB of dedicated GDDR5 video memory. It also has a built-in “FaceTime HD” webcam and stereo speakers. This model has a 21.5" 4096×2304 LED-backlit 16:9 widescreen IPS DCI-P3 “Retina 4K” display (that runs “pixel doubled” to look like 2048×1152). The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges. Connectivity includes four USB 3.0 ports, dual Thunderbolt 3 (USB-C) ports, Gigabit Ethernet, 802.11ac Wi-Fi, and Bluetooth 4.2. It does not have a T2 chip. Compared to its predecessor, this model is very similar externally and internally, but it has a more advanced processor and architecture as well as graphics processor.

Features

• This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box.
• 21.5-inch (2048 × 1152) LED Display
• Intel Core i3-8100 Processor (Quad-Core, 3.6GHz, 6MB Cache)
• 8GB DDR4 Memory
• 1TB (5400RPM) SATA Hard Disk Drive (HDD)
• Dedicated AMD Radeon Pro 555X Graphics (2.0GB Dedicated Video Memory)
• No Optical Drive
• 4 x USB 3.0, 3 x USB-C, 1 x DisplayPort, 1 x Microphone-in
• Wired Keyboard and Wired Mouse
• 1.2MP Webcam
• 10/100/1000 Gigabit Ethernet, IEEE 802.11ac and Bluetooth 4.2
• Operating System: macOS 10.15
• 18″ × 21″ × 7″ (HxWxD); 12.5lbs
• Energy Star Compliant
• The warranty is through us for 90 Days.

Package Contents

• Apple iMac Retina 4K 21.5" All-in-One Computer
• macOS 10.14 pre-installed
• USB keyboard and mouse
• Power cord