B grade refers to units that may have dents, chips, or scuffs on the body. Hairline scratches or scuffs may be on the screen.
Model Name: iMac (Retina 4K, 21.5 -inch, 2017)
Features: Retina 4K display
Display Inch: 21.5 -inch (diagonal) Retina 4K display
Resolution: 4096-by-2304 resolution with support for one billion colors | 500 nits brightness | Wide color (P3)
Processor Options:
# 1: 3. 0GHz quadcore Intel Core i5 (Turbo Boost up to 3.5GH z)
# 2: 3. 4GHz quad-core Intel Core i5 (Turbo Boost up to 3.8GH z)
# 3: 3. 6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GH z)
Graphics Card Options:
#1: (
3.0GH z): - Radeon Pro 555 with 2GB of VRAM
#2: (
3.4GH z): - Radeon Pro 560 with 4GB of VRAM
RAM: 8GB RAM / 16GB RAM / 32GB RAM
Storage: 256GB Fusion Drive / 512GB SSD / 1TB HDD / 1TB Fusion Drive
Camera: FaceTime HD camera
Video Support: Simultaneously supports full native resolution on the built-in display at millions of colors ( 21.5 -inch) or 1 billion colors ( 21.5 -inch 4K) and
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
OS: macOS
Other Features: Built-in Apps
Dimensions: Height 17.7 inches ( 45.0 cm) x Width 0.8 inches ( 52.8 cm) x Stand depth 6.9 inches ( 17.5 cm)
Weight: 12.5 pounds ( 5.66 kg)