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All-in-One · 2009ObsoleteUncommon · 60
iMac 21.5″ (Late 2009)
A1311 · Unibody iMac (2009-2011)
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Identifiers
| Order number | A1311 |
| Machine ID | iMac10,1 |
Reference
| Original price | $1,199 – $1,949 |
| Announced | 2009-10-20 |
| Discontinued | 2010-07-27 |
| Max supported OS | macOS 10.13 High Sierra |
| Design era | Unibody iMac (2009-2011) |
Configurations
| Colors | Anodized aluminum |
| CPU | Intel Core 2 Duo E7600 @ 3.06 GHz, Intel Core 2 Duo E8600 @ 3.33 GHz |
| Memory | 4 GB, 8 GB (max) |
| Storage | 500 GB SATA HDD, 1 TB SATA HDD |
| Graphics | NVIDIA GeForce 9400M (256 MB shared), ATI Radeon HD 4670 (256 MB) |
| Display | 21.5″ LED (1920×1080) |
| Operating system | Mac OS X 10.6.1, macOS 10.13 High Sierra |
| Removable media | SuperDrive (DVD±R DL, slot-loading) |
Physical
| Ports & connectivity | 4× USB 2.0 · 1× FireWire 800 · 10/100/1000 Ethernet · 3.5mm headphone · 3.5mm audio in · Mini DisplayPort (target display mode) · SDXC card slot · Built-in iSight |
| Dimensions (W×H×D) | 528 × 450 × 189 mm |
| Weight | 9.3 kg |
Known quirks
- New unibody aluminum enclosure — larger 21.5" and 27" options
- Mini DisplayPort doubles as Target Display Mode input
- HDD thermal sensor on Apple drives — third-party swaps require workaround
- PSU fans can whine after years