Model: Ultrastar DC HC560 20 TB, marked with private number (P/N) 0F38785.
Recording technology: CMR (Conventional Magnetic Recording) + proprietary “OptiNAND™” technology, which uses embedded NAND (flash) to optimize metadata.
OptiNAND™: Integration of iNAND UFS flash + traditional HDD mechanism. This allows for richer metadata, higher recording density (tracks per inch) and better efficiency.
HelioSeal® technology: Helium sealing, which reduces resistance and vibration, helps with mass disks with many platters.
Designed for 24/7 operation and intensive loads (enterprise grade).
Suitable for NAS, cloud arrays, video archives, data centers.
| Hard disk type | Server NAS Enterprise / Data Center |
| Capacity | 20 TB |
| Speed | 7200 rpm |
| Interface | SATA3 6 Gb/s |
| Form factor | 3.5 inch |
| Buffer | 512 MB |
| Dimensions (mm) | 26.1 x 101.6 x 146.99 |
| Weight | 0.750 kg |
| Warranty | 60 months |