| OVERVIEW | |
| Introduced | October 2009 |
| Model Identifier | iMac10,1 (Core 2 Duo) iMac11,1 (Core i5, i7) |
| Model Number | A1312 |
| EMC | 2309 (Core 2 Duo) 2374 (Core i5, i7) |
| Order Number | MB952LL/A (3.06 GHz), MB953LL/A (2.66 GHz) |
| Support | NiwTech |
| Colors | Silver |
| Weight and Dimensions | 30.5 lbs., 20.4" H x 25.6" W x 8.15" D |
| PROCESSOR | |
| Processor | Intel Core 2 Duo (E7600, E8600), Core i5 (750), or Core i7 (860) ("Wolfdale, Lynnfield") |
| Processor Speed | 3.06 or 3.33 GHz (Core 2 Duo), 2.66 GHz (Core i5), 2.8 GHz (Core i7) |
| Maximum Processor Speed | |
| Architecture | 64-bit |
| Number of Cores | 2 (Core 2 Duo) 4 (Core i5, Core i7) |
| Security Chip | No |
| Cache | 3 MB (3.06 GHz) 6 MB (3.33 GHz) L2, 8 MB (2.66, 2.8 GHz) L3 |
| System Bus | 1066 MHz (3.06 GHz Core 2 Duo) or 1333 MHz (3.33 GHz Core 2 Duo) or Intel Direct Media Interface (DMI) at 2.5 GT/s (Core i5 and Core i7) |
| Logic board Repair | NiwTech |
| STORAGE AND MEDIA | |
| Storage | 1 or 2 TB (7200-rpm) |
| Storage Upgrade | NiwTech |
| SSD Upgrade | NiwTech |
| Data Recovery | NiwTech |
| Media | Slot-loading 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) |
| PERIPHERALS | |
| Peripherals | Apple Wireless Keyboard, Magic Mouse |
| Peripherals Repairs | NiwTech |
| SOFTWARE | |
| Original OS | Mac OS X 10.6.1 (10A2155), 10.6.2 (10C2234) |
| Maximum OS | macOS 10.13.6 (17G65) |
| OS install | NiwTech |
| OS Upgrade | NiwTech |
| OS Downgrade | NiwTech |
| OS Support | NiwTech |
| AirDrop | Supported |
| Handoff | |
| Power Nap | |
| Unlock with Apple Watch | |
| Hardware Test | AHT 3A202 |
| FIRMWARE | |
| Firmware | Intel Extensible Firmware Interface (EFI) |
| MEMORY | |
| Built-in Memory | None |
| Maximum Memory | 32 GB (Core i5 or Core i7 Actual) 16 GB (Apple) |
| Memory Slots | 4 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM |
| Memory Upgrade | NiwTech |
| Memory Upgrade Instructions | How to remove or install memory |
| Interleaving Support | Yes |
| DISPLAY | |
| Built-in Display | 27-inch (viewable) LED-backlit glossy widescreen TFT LCD with IPS |
| Display Glass | |
| Brightness | 375 cd/m2 |
| Pixel Density | |
| Color Gamut | |
| Resolutions | 2560 by 1440 pixels |
| Display Replacement | NiwTech |
| GRAPHICS | |
| Graphics Card | ATI Radeon HD 4670 or Radeon HD 4850 |
| Graphics Card Replacement | NiwTech |
| Graphics Memory | 256 MB (Radeon HD 4670) or 512 MB (Radeon HD 4850) GDDR3 |
| Display Connection | 1 - Mini DisplayPort |
| Display Modes | Dual display extended, video mirroring, Target Display |
| External Resolution | Up to 2560 by 1600 pixels |
| CAMERA | |
| Camera | Built-in iSight |
| CONNECTIONS | |
| Wi-Fi | Built-in AirPort Extreme card (802.11a/b/g/n) |
| Bluetooth | Built-in Bluetooth 2.1 + EDR |
| Ethernet | 10/100/1000BASE-T (RJ-45) |
| Modem | None |
| USB | 4 - 480 MBit/s |
| FireWire | 1 - 800 MBit/s (7 watts) |
| Thunderbolt | |
| Display | 1 - Mini DisplayPort |
| Infrared | 1 - For Apple Remote only |
| Audio In | 1 - 3.5-mm analog/optical combo input jack, Built-in microphone |
| Audio Out | 1 - 3.5-mm analog/optical combo output jack, 2 - internal 17-watt amplifiers, Built-in speakers |
| Security Slot | 1 - Kensington cable lock |
| EXPANSION | |
| Slots | 1 - Secure Digital (SD) |
| Bays | None |
| Hard Drive Interface | 3.0 Gbps Serial ATA (SATA) |
| Optical Drive Interface | |
| SENSORS | |
| Liquid Sensor | Non |
| POWER | |
| Backup Battery | 3 V CR2032 lithium |
| Maximum Continuous Power | 365 W |
| Line Voltage | 100-240V AC |
| Power Supply Replacement | NiwTech |
| ENVIRONMENTAL | |
| Acoustical Performance | |
| Power Consumption | 145 W (Idle) 365 W (CPU Max) |
| ENERGY STAR | Meets ENERGY STAR 5.0 requirements |
| EPEAT | Gold |
| NiwTech | www.niwtech.com |
