Quiet NAS HDDs

[Enquiries]

Which seem to be the quietest 7200 rpm NAS HDD for 12TB to 16TB? I'm using Seagate Ironwolf Pro 10TBs in a QNAP 453D (RAID 5) and they are too loud when working in the same office. I've also used WD RED Pro HDDS, but only in the 6TB form factor (so quieter than the Seagates). I'm looking at moving to the TerraMaster F4-424-Pro with unRAID and four new drives. Any advice appreciated (but not interested in consumer HDDs as reliability matters).

[ed]

Maybe this comparison helps:

manufacturer category model serial capacity speed workload noise watts

Seagate HDD Ironwolf PRO ST12000NT001 12TB 270MB/s 550 26 7.8
Seagate HDD Ironwolf PRO ST12000NE0008 12TB 240MB/s 300 26 7.8
Toshiba HDD Enterprise MG07ACA12TE 12TB 254 MiB/s 550 27 7.8
Synology HDD HAT5300 HAT5300-12T 12TB 242 MiB/s 550 27 7.83
WD HDD Purple WD121PURZ 12TB 245 MB/s 360 29 6.6
WD HDD Purple PRO WD121PURP 12TB 245 MB/s 550 29 6.6
WD HDD Red Plus WD120EFBX 12TB 196 MB/s 180 29 6.3
Seagate HDD Ironwolf ST12000VN0008 12TB 210MB/s 180 30 7.3
Synology HDD HAT3300 HAT3300-12T 12TB 210MB/s 180 32 7.8
Seagate HDD Exos X16 ST12000NM001G 12TB 245MB/s 550 34 9.5
Seagate HDD Exos X20 ST12000NM000J 12TB 258MB/s 550 34 8.6
Seagate HDD Skyhawk AI ST12000VE001 12TB 270MB/s 550 34 8
WD HDD Gold WD121KRYZ 12TB 255MB/s 550 36 6.9
WD HDD HC520 0F30146 12TB 255MB/s 550 36 6.3
WD HDD Red PRO WD121KFBX 12TB 240 MB/s 550 36 6