The Apple iMac Retina 4K 21.5-inch 2019 is a personal computer that was designed, manufactured, and sold by Apple from 2019 to 2021 as part of the iMac series. The computer has been introduced on March 19, 2019, and its price started at $1299.
The new iMac features a 3.6 GHz Intel Core i3 or 3.0 GHz Intel Core i5 or 3.2 GHz Intel Core i7 processor, 8 GB / 16 GB or 32 GB of RAM, 21.5-inch Retina 4K LED-backlit IPS LCD Display, 1 TB hard drive, or Fusion Drive / 256 or 512 GB of the flash drive, Ambient Light Sensor, FaceTime HD camera, two Thunderbolt 3 ports, four USB 3.0 ports, an SDXD card slot, and 2 GB AMD Radeon Pro 555X graphics in the base model.
On March 20, 2021, Apple discontinues this iMac in configurations with 512 GB and 1 TB SSD of storage. From that day available are iMac configurations only with 256 GB SSD storage and 1 TB Fusion drive.
This iMac has been discontinued on April 20, 2021, and replaced by the new iMac M1 24-inch 2021.
Today iMac Retina 4K 21.5-inch 2019 is 5 years old!
iMac Retina 4K 21.5-inch 2019 Release Date and Original Price
| Introduced | March 19, 2019 |
| Discontinued | March 20, 2021 (512 GB & 1 TB SSD) April 20, 2021 (Entirely) |
| Model Identifier | iMac19,2 |
| Model Number | A2116 |
| EMC | 3195 |
| Order Number | MRT32LL/A (3.6 GHz) MRT42LL/A (3.0 GHz) |
| Original Price | $1,299 $1,499 $1,599 $1,699 |
| Colors | Silver Aluminum |
| Weight | 12.3 Ibs. 5.579 KG |
| Dimensions | 17.7” H x 20.8” W x 6.9” D 44.95 cm H x 52.83 cm W x 17.52 cm D |
Tech Specs
Processor
| Processor | Intel Core i3 8100 “Coffee Lake” (3.6 GHz) Intel Core i5 8500 “Coffee Lake” (3.0 GHz) Intel Core i7 8700 “Coffee Lake” (3.2 GHz) |
| Processor Speed | 3.6 GHz 3.0 GHz 3.2 GHz |
| Maximum Processor Speed | Up to 4.1 GHz (3.0 GHz) Up to 4.6 GHz (3.2 GHz) |
| Architecture | 64-bit |
| Number of Cores | 4 (Core i3) 6 (Core i5 and Core i7) |
| System Bus | Intel Direct Media Interface (DMI) at 8 GT/s |
| Cache | 6 MB L3 (Core i3) 9 MB L3 (Core i5) 12 MB L3 (Core i7) |
Storage & Media
| Storage | 1 TB HDD 1 TB Fusion Drive 256 GB SSD 512 GB SSD 1 TB SSD |
| Media | None |
Memory
| Built-in Memory | 8 GB 16 GB 32 GB |
| Maximum Memory | 32 GB (Apple) 64 GB (Actual) |
| Memory Slots | 2 – PC4-19200 260-pin DDR4 SO-DIMM 2400 MHz (Core i3) 2 – PC4-31300 260-pin DDR4 SO-DIMM 2666 MHz (Core i5 and Core i7) |
| Interleaving Support | Yes |
Display
| Built-in Display | 21.5″ Retina 4K LED-backlit LCD IPS Display |
| Display Glass | Standard |
| Color Gamut | Wide color gamut P3 |
| Brightness | 500 cd/m2 |
| Pixel Density | 219 ppi |
| Resolutions | 4096 x 2304 |
Graphics
| Graphics Card | AMD Radeon Pro 555X AMD Radeon Pro 560X AMD Radeon Pro Vega 20 |
| Graphics Memory | 2 GB GDDR5 (AMD Radeon Pro 555X) 4 GB GDDR5 (AMD Radeon Pro 560X and AMD Radeon Pro Vega 20) |
| Display Connection | 2 – Thunderbolt 3 |
| Display Support | Support for up to two Thunderbolt displays |
| Display Modes | Dual display extended, video mirroring, and AirPlay Mirroring |
| External Resolution | Up to 4096 x 2304 (two displays) at 60 Hz Up to 5120 x 2880 (one display) at 60 Hz |
| Camera | FaceTime HD |
Expansion
| Expansion Slots | 1 – Secure Digital (SDXC) |
| Hard Drive Interface | 1 – 6.0 Gbps Serial ATA (SATA) 1 – 8.0 GT/s NVMe PCIe x4 |
Connections
| Ethernet | 10/100/1000BASE-T (RJ-45) |
| Modem | None |
| Wi-Fi | 802.11ac |
| Bluetooth | Bluetooth 4.2 |
| USB | 4 – Up to 5 Gbps |
| Infrared | None |
| Thunderbolt | 2 – Thunderbolt 3 (Up to 40 Gbps) |
| Audio In | 2 – Microphones |
| Audio Out | 1 – 3.5-mm analog/optical combo jack 2 – Built-in speakers |
| Display | 2 – Thunderbolt 3 |
Software
| Original OS | macOS 10.14.4 |
| Maximum OS | The latest release of macOS |
| Firmware | Intel Extensible Firmware Interface |
| AirDrop | Supported |
| Handoff | Supported |
| Unlock with Apple Watch | Supported |
| Bundled Software | macOS 10.14 iPhoto iMovie GarageBand Pages Numbers Keynote |
Keyboard and Mouse
| Peripherals | Magic Keyboard Magic Mouse 2 or Magic Trackpad 2 |
Power
| Maximum Continuous Power | 205 W |
| Line Voltage | 100-240 V AC |
References:
Apple Support – iMac (Retina 4K, 21.5-inch, 2019): Technical Specifications