How loud is a Toshiba hard drive?
Between 20 and 34 dB at idle for a consumer model, on its current Toshiba America sales sheet, and the figure depends mostly on capacity. Each sheet has one row, "Acoustics Idle Mode [dB]" or "Acoustics (Idle Mode) [dB]". With no seek row, no quantity and no measuring standard, these numbers rank only against each other.
| Family | Capacities | Idle dB |
|---|
| N300 | 12TB to 22TB | 20 |
| N300 Pro | 12TB to 24TB | 20 |
| X300 | 12TB to 20TB | 20 |
| X300 Pro | 12TB to 22TB | 20 |
| S300 AI | 14TB to 24TB | 20 |
| S300 | 2TB | 21 |
| S300 | 4TB | 22 |
| S300 | 6TB | 24 |
| N300, N300 Pro, X300, X300 Pro | 4TB to 10TB | 34 |
| S300 Pro | 4TB to 10TB | 34 |
| S300 AI | 8TB and 10TB | 34 |
In all four NAS and desktop families the jump from 34 to 20 dB happens between 10TB and 12TB, and the sheets do not explain it.
Is the Toshiba N300 noisy?
At 4TB to 10TB, by Toshiba's standards, yes: 34 dB at idle, against 20 dB from 12TB to 22TB on the July 2026 N300 sheet.
That makes the 8TB HDWG780XZSTA and the 12TB HDWG51CXZSTA read like different products, although they share a family name. Worried about N300 noise? Pick the capacity first. The N300 Pro has the same split. Its retail numbers end in B, so the N300 Pro 16TB is HDWG81GXZSTB while the plain N300 16TB is HDWG81GXZSTA, and the last letter deserves a second look before you buy.
A loud X300 is often a small one
From 4TB to 10TB the X300 is rated 34 dB at idle, 14 dB above the 12TB to 20TB models. The X300 Pro sheet repeats the pattern: 34 dB for 4TB to 10TB, 20 dB for 12TB to 22TB.
Then there is the clicking.
What you hear when a game loads or a folder opens is the heads seeking, and Toshiba rates seek noise for no X300 or X300 Pro. The only Toshiba documents with a seek row, for the MG09, MG10 and MG11, put seek 12 dB above idle on the same drive.
Small S300 and large S300 AI drives rate lowest for surveillance
The S300 AI from 14TB to 24TB rates 20 dB idle. Below that, the 2TB S300 HDWT720UZSVA rates 21 dB, the lowest consumer sheet figure under 12TB, and the plain S300 rises with capacity: 22 dB at 4TB, 24 at 6TB. Its US sheet lists bulk model numbers only. The retail packaging row holds a dash.
Every S300 Pro from 4TB to 10TB rates 34 dB, as do the 8TB and 10TB S300 AI. For a recorder in a bedroom closet, a small S300 or a large S300 AI beats an S300 Pro.
MG enterprise manuals add ISO 7779 and a seek row
The MG07, MG08, MG09, MG10 and MG11 are all rated 20 dB at idle, typical, in manuals that name ISO 7779 as the measuring method. Seek data is thinner.
| Series | Idle | Seek or active | Notes |
|---|
| MG09 | 20 dB | 32 dB active | Sound power |
| MG10 | 20 dB | 32 dB seek | Sound power |
| MG11 | 20 dB | 32 dB seek | Sound power |
| MG07 | 20 dB | No seek row | Sound power |
| MG08 | 20 dB active idle | No seek row | No quantity named |
| MG08-D | 31 dB active idle | No seek row | |
| MG10-D | 34 dB | No seek row | Sound power |
The MG04 manual is older and uses averages: 31 dB idle and 34 dB random seek for the MG04ACA200E to MG04ACA500E, and 34 and 35 for the MG04ACA600E and MG04ACA50DE. It names no standard, so it is listed apart, though Toshiba America still shows the MG04 among its Enterprise Capacity drives.
These enterprise figures are sound power, a property of the drive rather than a level at your ear. Our explainer covers the difference, and why they are not ranked against the consumer sheets.
For a quiet NAS, buy 12TB or more
Every N300 and N300 Pro at 12TB and up rates 20 dB idle, against 34 dB below it. Of those, the N300 Pro 16TB was the one Amazon had in stock, new, with the full retail number in the listing title. It supports up to 24 bays, which covers any home unit; our NAS guide ranks the enclosures themselves.
A drive Toshiba sells for data centers is the other route, if going without a Toshiba retail warranty term is acceptable. The MG07, MG08 and MG09 picks share the 20 dB idle rating, and only the MG09 also comes with a printed seek figure.
The P300 desktop drive has none from Toshiba America, because it is missing from the consumer internal drive page. Toshiba's European P300 data sheet does print idle figures, covered in our hard drive guide. No current consumer sheet from Toshiba America prints a seek figure or says whether its dB is sound power or sound pressure. The S300 sheet gives no retail model numbers at all.
