Used
$24.93/TB
16TBSATA
Seagate Exos ST16000NM000H 16TB SATA 6Gb/s 3.5" Enterprise HDD (Used, Tested)
Seagate
$398.96
2 left1
16TB Hard Drives
16TB enterprise hard drives balance capacity per bay against cost per terabyte. They are a frequent choice for new NAS and ZFS builds. Models at this capacity include Seagate Exos X16 and X18 builds such as the ST16000NM001G and ST16000NM000J, and the WD Ultrastar DC HC550 at 16TB, all helium-sealed and offered in SAS and SATA. Buyers use them to cut the number of bays a pool needs, to replace drives in existing 16TB arrays, and for backup and media storage that grows over time. Larger drives take longer to rebuild after a failure, so many builders pair them with double parity such as RAID 6 or RAIDZ2. Check the interface and sector format against your controller, and compare the power-on hours we list for each unit. Every used drive here passes SMART health and an extended self-test before it ships.
3 in stock · Tested in-house · 30-day returns
16TB Hard Drives: common questions
Should I use RAID 5 with 16TB drives?+
Many builders avoid single parity at this size because a rebuild takes a long time and a second failure during it loses the array. RAID 6 or RAIDZ2 is the common choice. The RAID calculator shows the usable space for each layout.
How do I know how many hours a drive has?+
We read power-on hours from the drive’s own SMART counter. On certified listings they are printed on the certificate in the box and shown on the unit’s public test report. The counter stays on the drive, so you can read it yourself on arrival with any SMART tool.
What warranty comes with these drives?+
Used drives carry a 90-day warranty, and certified tiers carry up to 2 years; the exact term is on each listing. New sealed drives keep the manufacturer warranty. Every order also has 30-day returns.