C grade refers to units that may have dents, cracks, chips, or scuffs on the body. There may be scratches or dark spots on the LCD screen.
Model Name: iMac (Retina 5K, 27-inch, 2017)
: Retina 5K display
Display: 27-inch (diagonal) Retina 5K display | 5120by2880 resolution with support for one billion colors | 500 nits brightness | Wide color (P3)
Processor & Graphic Options: 3.4GH z quadcore Intel Core i5 (Turbo Boost up to 3.8GH z) | Radeon Pro 570 with 4GB of VRAM
: 3.5GH z quadcore Intel Core i5 (Turbo Boost up to 4.1GH z) | Radeon Pro 575 with 4GB of VRAM
: 3.8GH z quadcore Intel Core i5 (Turbo Boost up to 4.2GH z) | Radeon Pro 580 with 8GB of VRAM
: 4.2GH z quad-core Intel Core i7 (Turbo Boost up to 4.5GH z) | Radeon Pro 580 with 8GB of VRAM
Memory: 8GB RAM | 16GB RAM | 32GB RAM | 64GB RAM
Storage: 256GB SSD | 512GB SSD | 1TB SSD | 1TB Fusion Drive | 2TB Fusion Drive | 3TB Fusion Drive
Video Support and Camera: FaceTime HD camera | Simultaneously supports full native resolution on the built-in display at 1 billion colors and One 5120by2880 (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 4096by2304 (4K) external displays at 60Hz with support for millions of colors | Thunderbolt 3 digital video output | Native DisplayPort output over USBC | Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)
Audio: Stereo speakers | Microphone | 3.5 mm headphone jack (Support for Apple iPhone headset with microphone)
Connections and Expansion: 3.5 mm headphone jack | SDXC card slot | Four USB 3 ports (compatible with USB 2) | Two Thunderbolt 3 (USB-C) ports with support for - DisplayPort / Thunderbolt (up to 40 Gbps) / 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
Wi-Fi: 802.11 ac Wi-Fi wireless networking | IEEE 802.11 a/b/g/n compatible
Bluetooth: Bluetooth 4.2 wireless technology
Size and Weight: Height 20.3 inches ( 51.6 cm) x Width 25.6 inches ( 65.0 cm) x Stand depth 8 inches ( 20.3 cm) | Weight 20.8 pounds ( 9.44 kg)
OS: macOS