HGST Ultrastar He12 | HUH721212ALE601 | 0F27454 | 12TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" Cache | 512E | BitLocker Hard Drive Encryption | Power Disable Function |

Used 3rd party software to check the integrity of the the hard drive and there were no bad sectors/blocks/bytes. These enterprise drives usually are only written on once, and spend the rest of their lifetime reading data.. meaning that they are in excellent condition and will usually outlast a brand new consumer grade drive. Been using this in my plex server and its been on for over 60 days straight with zero issues.

Great drive. Large capacity at 7200rpm slightly noisey at times but mostly quiet. Good Value

Seemed to be packed well, and in good shape. Worked for a few days, then failed in the middle of a 'save' operation and wasn't even recognized by my computer's BIOS. Returned for full refund.

As a recent purchaser of the Helium Platform Enterprise Hard Disk Drives for my customized computer, I am thoroughly impressed with their performance and reliability. These drives have seamlessly integrated into my system and have exceeded my expectations in terms of speed and durability. Their high-density storage and optimized data transfer rates ensure efficient operation, even with heavy workloads. The helium-sealed design not only enhances reliability but also contributes to quieter operation, which is a bonus. Overall, these drives have proven to be a valuable addition to my setup, offering the performance and reliability required for my demanding computing needs. Highly recommended for anyone in search of top-notch storage solutions for their enterprise setup.

I ordered 6 for a 4 bay NAS figuring at least one would be DOA and to keep one as a spare since it was such a good price. 1/6 was DOA sounded like maybe an actuator was bad tough to tell if it was due to shipping. They are shipped in antistatic bags in plastic shock resistant harddrive caddys in a cardboard box. SMART data is consistent with their description. Lowest time on for me was 29000 hours average seemed to be around 32000. Power cycles were low on all about 20. Extended tests on the 5 working drives all showed healthy without any bad sectors or incorrectables. Great deal for enterprise drives with a great warranty. These work well for those that have some fault tolerance so that if you do need to use the warranty it’s not a big deal. At 5 years I am expecting to RMA at least 2 but that is not a problem with my fault tolerance. I’m still spending much less money than buying new. Thanks goHarddrive!

I've bought several of these. 1 Failed after about 6 months but the rest have performed extremely well. I bought the refurbished drives and refurbish drives do come with some risk. Mine was in an RAID 5, and I just replaced the bad one with another drive. I'd only use these refurbished drives in an RAID where there is the ability to recover from a failure. The more critical your data, the more parity drives you should use.

Drive shows 100% health, only 23.5K hrs on it. Wicked fast shipping (overnighted from Florida to Maine). Great drive for backup or data hoarding, not that fastest or most responsive drive but great for bulk backup. Helium drives are noisy when the heads move and formatted capacity is 10.9TB. Super happy with the purchase! I'd have no problem loading a NAS with a bunch of these. If you don't see this updated there has been no change in the drive since this review was posted.

Great volume for a great price, if you're willing to roll the dice. I bought (4) 12TB drives for a RAID5. They arrived well packaged in separate boxes with a SATA to SATA cable in each one. Literature in each box explains that these drives have a remote power disable function, and that the included cable may be required if your system does not support this feature. Unfortunately, one of them arrived DOA (click of death, not detected by BIOS or seen in windows disk mngr when placed in a USB cradle. Another, while working, makes a disturbing grinding noise when it spins up. MDTech's support is fair enough, but they have to get the drive in hand before they'll ship the replacement. I know this is pretty normal, but now I get to wait a week or so, AND visit the delightful people at the local post office to get it sent back. I knew I was buying used drives and there is some risk. I suppose 'three outta four ain't bad'... but my project is now in limbo.