Processor / Memory

3.0GHz 6-core Intel Core i5
- Turbo Boost up to 4.1GHz
- Supports Hyper Threading
Optional 3.1GHz 6-core Intel Core i5
- Turbo Boost up to 4.3GHz
- Supports Hyper Threading
Optional 3.7GHz 6-core Intel Core i5
- Turbo Boost up to 4.6GHz
- Supports Hyper Threading
Optional 3.6GHz 8-core Intel Core i9
- Turbo Boost up to 5.0GHz
- Supports Hyper Threading

Base RAM: 8GB (two 4GB SO-DIMMs)
2666MHz DDR4 SO-DIMM PC21300 memory
Four memory slots

Internal Drives

SATA Revision 3.0 (6Gb/s) Hard Drive Bus
One 3.5-inch Hard Drive Bay
- 1.0TB, 2.0TB, or 3.0TB Fusion Drive
One PCIe Flash Drive Bay
- Optional 256GB, 512GB, 1.0TB, or 2.0TB Flash Storage

This iMac does not have an internal optical drive.

Hard drive upgrade: Add more HDD storage*

Add an External Optical Drive: Blu-ray or DVD options available

Ports

Headphone port
SDXC card slot
Four USB 3.0 ports
(compatible with USB 2.0)

Two Thunderbolt 3 ports
- Thunderbolt digital video output
- Support for DVI, VGA, and dual-link DVI (adapters sold separately)

10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot

External FireWire, USB, and eSATA, storage solutions | Audio, input, network, displays and power accessories

Power

Line voltage: 100-240V AC
Frequency: 50Hz to 60Hz, single phase

Operating temperature: 50° to 95° F (10° to 35° C)
Relative humidity: 5% to 95% noncondensing
Maximum operating altitude: 10,000 feet

Network

Built-in AirPort Extreme 802.11ac Wi–Fi wireless networking

Bluetooth 4.2 wireless technology

10/100/1000BASE-T Ethernet (RJ-45)

Airport / Wireless Routers | Bluetooth Accessories | Ethernet

Sound

Headphone port
- Headphone/optical digital audio output (minijack)
- Support for Apple iPhone headset with microphone

Stereo speakers

Microphone

Speakers | Headphones

Display / Monitor Capability

27-inch (diagonal) Retina display with IPS technology
5120 by 2880 resolution with support for millions of colors

Displays / Monitors | Add up to 4 monitors with USB Video Display Adapters

Graphics / Video

One of the following:
- AMD Radeon Pro 570X graphics processor with 4GB of GDDR5 memory
- AMD Radeon Pro 575X graphics processor with 4GB of GDDR5 memory
- AMD Radeon Pro 580X graphics processor with 8GB of GDDR5 memory
- AMD Radeon Pro Vega 48 graphics processor with 6GB of dedicated HMB2 memory
FaceTime HD camera
Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display
Support for extended desktop and video mirroring modes

Keyboard / Mouse

Magic Keyboard - US English

Magic Mouse 2

Keyboards | Mice / Trackpads / Mouse Pads

Dimensions / Weight

Height:	20.3"	(51.6cm)
Width:	25.6"	(65.0cm)
Depth:	8.0"	(20.3cm)
Weight:	20.8lb.	(9.42kg)

*While researched thoroughly via independent resources, OWC does not make any claim to accuracy or completeness of these specifications.

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