661-01725 - Apple 256GB Flash Storage Solid State Drive for iMac Retina 27

Here are the technical specifications for the Apple 256GB Flash Storage Solid State Drive for iMac Retina 27:

1. Interface: PCIe 3.0 x4
2. Form Factor: Custom Apple Proprietary
3. NAND Flash Type: TLC
4. Sequential Read Speed: Up to 3.2 GB/s
5. Sequential Write Speed: Up to 2.2 GB/s
6. Random Read IOPS: Up to 320,000
7. Random Write IOPS: Up to 290,000
8. MTBF: 1.5 million hours
9. Operating Temperature: 32°F to 158°F (0°C to 70°C)
10. Storage Temperature: -40°F to 185°F (-40°C to 85°C)
11. Shock Resistance: 1500G
12. Vibration Resistance: 5Hz to 800Hz, 5G

Helpful notes:
1. This SSD is compatible with iMac Retina 27-inch models from late 2014 to mid-2015.
2. It provides faster boot and load times compared to traditional hard drives.
3. The TLC NAND flash type used in this SSD offers a balance between performance and cost-effectiveness.