MSI SPATIUM M4602 TB · PCIe 4.0 NVMe M.2 2280 without heatsink- Rated sequential read
- 4900 MB/sThis one: 5000 MB/s
- Rated sequential write
- 4400 MB/sThis one: 4200 MB/s
STORAGE
MSI SPATIUM M461
2 TB · PCIe 4.0 NVMe M.2 2280 without heatsink · MSI part SPATIUM M461 PCIe 4.0 NVMe M.2 2TB
- Capacity
- 2000 GB
- SSD / HDD
- SSD
- Form factor
- M.2 2280
MSI's SPATIUM M461 is a PCIe 4.0 x4 NVMe 1.4 SSD in a bare 2.15 mm M.2 2280 module with a Phison E21T controller. The 2 TB version is rated up to 5,000 MB/s read and 4,200 MB/s write, lists 4.4 W maximum operating power and has a 5-year or 450 TB limited warranty.
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THE ACTUAL PRODUCT
Compare with MSI SPATIUM M460
Specifications checked 27 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked drives by key specifications, with what differs from the MSI SPATIUM M461. The first matches the Compare button above.
MSI SPATIUM M4602 TB · PCIe 4.0 NVMe M.2 2280 without heatsink
MSI SPATIUM M4802 TB · PCIe 4.0 NVMe M.2 2280 without heatsink- Rated sequential read
- 7000 MB/sThis one: 5000 MB/s
- Rated sequential write
- 6800 MB/sThis one: 4200 MB/s
MSI SPATIUM M470 PRO1 TB · PCIe 4.0 NVMe M.2 2280 without heatsink- Capacity
- 1000 GBThis one: 2000 GB
- Rated sequential read
- 6000 MB/sThis one: 5000 MB/s
Key strengths
Rated up to 5,000 MB/s sequential read, 4,200 MB/s sequential write, 680,000 random read and 880,000 random write IOPS at 2 TB.
MSI lists 4.4 W maximum operating power, 50 mW PS3 idle and 5 mW L1.2, plus LDPC ECC, end-to-end data path protection and TCG Pyrite support.
Before you buy
The 2 TB model's warranty write limit is 450 TB.
The data sheet has no DRAM cache row and does not state the NAND cell type or a post-cache write speed.
Every specification. With its source.
Full specifications
Exact configuration: 2 TB · PCIe 4.0 NVMe M.2 2280 without heatsink
25 specifications in 6 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 1 row repeats a listed fact in the manufacturer’s own wording, kept under “Manufacturer wording”.
Capacity & format
9 items
- Capacity
- 2000 GB
Manufacturer-listed 2 TB capacity; formatted usable space is lower.
Source - SSD / HDD
- SSDSource
- Form factor
- M.2 2280Source
- Interface and version
- PCIe 4.0 x4; NVMe 1.4
MSI lists compatibility with PCIe Gen4, Gen3, Gen2 and Gen1 hosts; earlier generations limit speed.
Source - DRAM cache present
- Not listed by the manufacturer
MSI does not state this for this model. · Unlike MSI's DRAM-equipped models, the M461 data sheet has no DRAM Cache row; absence of a row is not recorded as confirmed absence of DRAM.
Source - Drive dimensions
- 80 × 22 × 2.15 mm
Length × width × height of the bare module, all capacities.
Source - Controller
- Phison E21TSource
- NAND type
- Not listed by the manufacturer
MSI lists 3D NAND without stating the cell type
Source - Factory heatsink
- No
The data sheet lists a 2.15 mm-high bare module and no heatsink.
Source
Performance
4 items
- Rated sequential read
- 5000 MB/s
MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source - Rated sequential write
- 4200 MB/s
MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source - Rated random 4K read
- 680000 IOPS
MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source - Rated random 4K write
- 880000 IOPS
MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source
Manufacturer wording (1)
The same facts in the manufacturer’s combined or original wording, each with its source.
- Rated performance and conditions
- Up to 5000 MB/s sequential read; up to 4200 MB/s sequential write
MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source
Endurance & warranty
4 items
- Warranty write threshold
- 450 TB
2 TB value (500 GB: 110; 1 TB: 250; 4 TB: 900); not a guaranteed failure point. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source - Limited warranty time
- 5 years
Time limit, not a lifespan prediction. Coverage also ends at the TBW threshold; eligibility and full terms apply.
Source - Warranty terms and endurance if applicable
- 5 years or 450 TB written, whichever comes first; limited-warranty terms applySource
- Manufacturer MTBF rating
- Up to 1,500,000 hours
Statistical manufacturer claim, not individual lifespan or guaranteed operating time.
Source
Power
1 item
- Published power conditions
- 4.4 W maximum operating; 50 mW PS3 idle; 5 mW L1.2
2 TB column for maximum power; idle and L1.2 values span all capacities; APST supported. Measured on MSI's stated test system; not a constant everyday load. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.
Source
Features & software
5 items
- Hardware encryption support
- TCG Pyrite
Listed as 'Pyrite (Encryption, Data Security)'. Listed security capabilities do not mean encryption is enabled or supported by every host.
Source - TRIM support
- Yes
Manufacturer requires operating-system support.
Source - S.M.A.R.T. support
- Yes
Manufacturer monitoring capability, not a remaining-lifespan guarantee.
Source - Error correction support
- LDPC ECC; end-to-end data path protectionSource
- Drive management software
- MSI Center
MSI: monitors SSD health status and key performance metrics in real time.
Source
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