The Apple iMac (21.5-inch, 2017) with model number A1418 is a desktop computer known for its sleek design and reliable performance. Here are the key specifications for this model:

Display:

• Screen Size: 21.5 inches
• Display Resolution: 1920 x 1080 pixels (Full HD)
• Display Type: LED-backlit display

Processor:

• Processor Type: Various configurations were available, including Intel Core i5 and i7 processors.

Graphics:

• Graphics Processor: Various configurations were available, including Intel Iris Plus Graphics 640, 650, or AMD Radeon Pro 555, 560.

Memory (RAM):

• RAM Capacity: Configurable up to 16GB of DDR4 RAM

Storage:

• Storage Type: Various configurations were available, including 1TB hard drive or 256GB, 512GB SSD.
• Fusion Drive options were also available.

Ports:

• Thunderbolt 3 (USB-C) ports: Yes
• USB 3.0 ports: Yes
• SDXC card slot: Yes
• Headphone jack: Yes
• Ethernet port: Yes

Connectivity:

• Wi-Fi: 802.11ac Wi-Fi wireless networking
• Bluetooth: Bluetooth 4.2

Operating System:

• macOS Sierra (later upgradeable to macOS High Sierra or newer versions)

Dimensions:

• Height: 17.7 inches
• Width: 20.8 inches
• Depth: 6.9 inches

Weight:

• Approximately 12.5 pounds

The iMac (21.5-inch, 2017) was known for its vibrant display, powerful performance, and slim design, making it suitable for various tasks including productivity, creative work, and entertainment. It offered a balance of performance and affordability for users looking for a compact desktop solution.