Seagate BarraCuda 4TB 3.5" 5900RMP SATA 3.0 Desktop Internal Hard Drive (ST4000DMA04)

This is an SMR disk (explaining the need for a large cache). Avoid this at all costs if you plan to use it for NAS or anything where you have to copy or write a large number of small files at once (such as the OS drive). Once it fills up the cache, the write speeds will absolutely tank to the 20-200 KB/s range. For comparison, an old ST2000DM001 CMR disk from 2012 still hits 1.11 MB/s in this scenario! CrystalDiskMark results for 1 GiB (x1) [Read] SEQ 1MiB (Q= 8, T= 1): 102.488 MB/s [ 97.7 IOPS] < 80942.72 us> SEQ 1MiB (Q= 1, T= 1): 103.986 MB/s [ 99.2 IOPS] < 10075.37 us> RND 4KiB (Q= 32, T= 1): 1.035 MB/s [ 252.7 IOPS] <122788.12 us> RND 4KiB (Q= 1, T= 1): 0.480 MB/s [ 117.2 IOPS] < 8512.61 us> [Write] SEQ 1MiB (Q= 8, T= 1): 78.274 MB/s [ 74.6 IOPS] <105117.98 us> SEQ 1MiB (Q= 1, T= 1): 83.965 MB/s [ 80.1 IOPS] < 12478.01 us> RND 4KiB (Q= 32, T= 1): 0.217 MB/s [ 53.0 IOPS] <544645.26 us> RND 4KiB (Q= 1, T= 1): 0.021 MB/s [ 5.1 IOPS] <176072.51 us>

No mater how tempting the cost I will advise to not purchase Seagate drive. I lost data on 1GB External Portable drive. Now Seagate Baracuda 2TB is gone after a year. Do not experience the frustration just because of an affordable price. In 30 years of using computers Seagate tops the list of the worst products. Do yourself a service and avoid SEAGATE at any cost.

NOTE: This is not a review of the actual Hard Drive but its condition on arrival. This was an online purchase. I live in Ontario and tracked the package over 4 days starting in Delta BC, flown to Calgary Alberta, then flown to Moosonee Ontario, then 3 more transfers in Ontario before finding it on my porch, all with it being very poorly packaged and protected. The soft envelope it came in was made of very thin bubbles. The envelope arrived torn and actual drive box slightly damaged. It had no Fragile sticker on the outside. Why would I dare open and install this highly calibrated Hard Drive into my computer after it was obviously thrown around during transit? I will be returning this drive and never order anything of a delicate nature again from Best Buy.

bought this hdd to use as my steam library and misc files on my new pc i just put together, initializing and installing the drive was straight forward and really easy, a bit on the slow end of the rpm range(5400rpm) but since my steam library was small and i don't have that many files i wasn't to worried about it, overall i was very happy with purchase

I needed more space, i would never use the whole Hard drive, so much space.. but im glad of my purchase..