Toshiba MG11 Series: All 36 Part Numbers, With Power and Speed at Every Capacity

Toshiba MG11 series part numbers: MG11ACA and MG11SCA at six capacities

The MG11 overview's model table has 36 rows, 18 on each interface and three at each capacity. This grid joins the two lists. Every one of the 36 is 512e. A footnote adds: 'Default configuration is 512e. Convert between 512 and 4096 byte logical size formats.' So this table has no separate 4Kn number to look for.

Rows with a blank security column are labelled standard here. Reading the rows, a trailing Y goes with the SIE option, an instant-erase model, and ACP or SCP in place of ACA or SCA goes with SED, a self-encrypting drive. Toshiba says SED supports TCG Enterprise SSCs. We have not found a Toshiba document that decodes these numbers in words, so treat this as a pattern from the table.

The overview labels the interfaces two ways, and we report both without choosing. The model table prints SATA-3.5a and SAS-3.0. The SAS specification table prints 'SAS-3 and later', at 12.0, 6.0, 3.0 and 1.5 Gbit/s. The SATA specification table agrees with its model table, at 6.0, 3.0 and 1.5 Gbit/s.

Toshiba MG11 power and speed by capacity, SATA and SAS

Read as plain text, the overview gives three power values against six capacity columns. We rendered page 2 of Toshiba's PDF on 5 November 2026, with the cell borders visible, and recorded the map used here. The watt figures are Toshiba's; the spans are what the rendered page shows.

Three cells cover six sizes, so the watts per terabyte shift more than the watts do. On SATA at idle that works out at about 0.18 W per TB at 24 TB, 0.20 W at 22 TB, 0.22 W at 20 TB, 0.23 W at 18 TB and 16 TB, and 0.26 W at 14 TB. On SAS it runs from about 0.20 W per TB at 24 TB to about 0.30 W at 14 TB. A 20 TB MG11 idles at the same printed figure as a 24 TB one. These are our sums from typical figures, not a running cost, and they leave out cooling and enclosure.

SAS adds about the same at every size. It reads 0.48 W above SATA at idle in the top cell, 0.46 W at 18 TB and 0.50 W at 16 TB and 14 TB, and 0.46 to 0.49 W above it on write/read. Speed does not differ by interface in these tables. At about 309 MB/s, filling a 24 TB drive end to end takes about 21.6 hours; at about 299 MB/s, 22 TB takes about 20.4 hours; at about 295 MB/s, 20 TB takes about 18.9 hours and 14 TB about 13.2 hours. That is our arithmetic and a floor, since it assumes the maximum sustained rate throughout.

Toshiba MG11 24TB and 22TB: MG11ACA24TE, MG11SCA24TE, MG11ACA22TE

Toshiba's overview says the series packs up to 24 TB into a standard 3.5-inch CMR drive, with up to a 10-disk helium-sealed design and FC-MAMR reaching 2.4 TB per disk. MG11ACA24TE is the SATA standard number at that size and MG11SCA24TE the SAS one. The 24 TB table holds 1 listing right now. Lowest per TB: £44.16/TB. The wider field is on 24 TB hard drives.

At 22 TB the SATA standard number is MG11ACA22TE. It sits in the same power cell as 24 TB, with sustained speed one step lower. The 22 TB table holds 1 listing right now. Lowest per TB: £36.36/TB. A 22 TB drive with a generic Amazon title can fall outside this filter, so also look at 22 TB hard drives and at the 22 TB table on Toshiba enterprise hard drives.

MG11ACA20TE and MG11ACA16TE have no table of their own here; any row we match would sit in the main table further down. On the rendered map, MG11ACA20TE shares the 4.35 W SATA idle cell with 24 TB and MG11ACA16TE shares the 3.66 W cell with 14 TB. Both run at 281 MiB/s. Across all six sizes the SAS table holds 2 listings right now. Lowest per TB: £44.16/TB.

Toshiba MG11 sector formats, limits and mechanical figures

Sector format also separates the interfaces. SATA E and EY numbers, and the ACP E numbers, present 512 B host sectors on 4096 B disk sectors, with read-modify-write supported. SAS numbers offer that and two more: 520 B on 4160 B and 528 B on 4224 B. If your controller expects one of those, it decides the interface for you.

• Rotation and buffer: 7200 rpm and 1 GiB on both interfaces.
• Recording: CMR, with what Toshiba calls 2nd generation FC-MAMR.
• Sound power (typ.): 20 dB at idle and 32 dB at seek, by ISO 7779.
• Allowable voltage: 12 V +/-10 %, 5 V +10/-7 %.
• Rated annual workload: 550 TB.
• MTTF/MTBF: 2,500,000 hours (0.35% AFR), assuming 8760 power-on hours a year, 550 TB a year and an average HDA surface temperature of 40 °C or less.
• Load/unload: 600,000 times. Non-recoverable error rate: 10 per 10^16 bits read. Availability: 24 hours a day, 7 days a week.
• Ambient temperature: 5 °C to 55 °C operating, -40 °C to 70 °C non-operating. Enclosure surface: 5 °C to 60 °C operating.
• Humidity: 5 % to 90 % operating. Altitude: -305 m to +3048 m operating.
• Shock: 490 m/s2 {50 G} operating and 1960 m/s2 {200 G} non-operating, both 2 ms.
• Maximum size and weight: 101.85 mm wide, 26.1 mm high, 147.0 mm long, 730 g.

These are the figures from a four-page overview, Rev. 00 of August 2024, and we did not open the product manual. Toshiba defines a terabyte as 1,000,000,000,000 bytes, so an operating system shows less. It lists data centre, big data, video surveillance, rack-scale storage, compliance archives and data back-up among MG11 applications. Treat that as a list of intended uses. It does not say that any particular recorder or server accepts the drive, and the maker of that machine is the place to confirm it.

Toshiba MG11ACA24TE in Backblaze's fleet: about six months of data

Backblaze's Q2 2026 quarterly table has one MG11 row. MG11ACA24TE shows 9,620 drives, 824,903 drive days, 13 failures and a 0.58% AFR at an average age of 5.8 months. Its lifetime table shows 1,694,377 drive days, 23 failures and 0.5%. A model enters the quarterly table only above 100 drives and 10,000 drive days, which this one clears by a wide margin.

The count is large and the age is short. Drives about six months into service, in Backblaze's own data centres, cannot tell you about later years. The row covers the 24 TB SATA standard number only, so it says nothing direct about SAS, SED or a 14 TB model. Toshiba's 0.35% is a rating under stated conditions, and Backblaze's figure is a field count, so do not set one against the other as if they measured the same thing.

Toshiba MG11 prices on Amazon.co.uk

The table below holds 5 listings right now. That includes 5 listings in new condition. Lowest per TB: £36.36/TB. Lowest outlay: £698.22. Prices are pounds sterling inc VAT, and the per-TB sort mixes every size and both interfaces, so it is a price order and names no winner. The row-by-row comparison with MG10 is on Toshiba MG10 vs MG11.

The filter relies on the generation our catalogue reads from a listing, so a listing with a generic title can fall outside it. Sellers write their own titles, so take capacity and interface from the part number and the grid above. If a listing gives no number, ask for it before you press Buy on Amazon.

The MG11 overview prints no warranty length. Toshiba Europe's MG Series page says "The MG Series comes with a 5-year limited warranty" and elsewhere "A 5-year extended warranty is also included", and that the warranty commitments "apply under the assumption that annual workload does not exceed 550 TB". It lists MG11ACA and MG11SCA among its range prefixes. That is the maker's statement, from Toshiba's web page, and it does not tell you how a particular seller or a used unit is treated.