0JHTD: Dell 12TB 3.5 inch 7.2K HDD HGST HUH721212AL5205

0JHTD is a Dell 12TB 3.5-inch 7.2K rpm hard drive with 512e sectors and self-encryption. MD1400 and MD1420 enclosures support it as HGST model HUH721212AL5205 with firmware NM10.

HUH721212AL5205 is a 12TB SAS member of the Ultrastar DC HC520 family, formerly Ultrastar He12. It is a helium-filled drive with 8 disks using HelioSeal technology and perpendicular magnetic recording. In the model number, 52 marks the 512e SAS 12Gb/s interface and the final 5 marks TCG encryption with FIPS.

The interface is SAS 12Gb/s with a 1200 MB/s maximum transfer rate, spindle speed is 7200 RPM, the data buffer is 256 MB and average latency is 4.16 ms. Sustained transfer is 255 MB/s typical, and 512e SAS models can format with 512, 520 or 528-byte sectors.

Reliability figures are 2.5 million hours MTBF at 0.35 percent AFR, a non-recoverable error rate of 1 in 10^15 bits, 600,000 load/unload cycles at 40 C and a workload rating of 550 TB per year. Power draw is 10.1 W operating and 6.1 W idle for SAS models. It is 26.1 mm tall, 101.6 mm wide and 147 mm deep, at most 660 g.