Retailer photo of Western Digital SN770M 2TB. View this offer in Where to buy
Western Digital · SSD · PCIe 4.0
Western Digital SN770M 2TB
Works well for: System Drive, Game & File Storage, Heavy Creative Work
Trade-offs: you want strong value with Balanced priorities specifically
- Capacity
- 2 TB
- Interface
- M.2 PCIe 4.0 x4
- Sequential read
- 5150 MB/s
- Sequential write
- 4850 MB/s
- Endurance
- 1200 TBW
- Form factor
- M.2-2230
Move a slider and the page re-scores this product against the same market frame.
Is this a good buy today?
Market confidence: LowAt $400 the Western Digital SN770M 2TB is priced in line with its $400 representative market level. Only one retailer currently backs that price, so the level is a single data point rather than a market.
Limited market: only one retailer currently has a verified offer, so treat this price as a single data point.
Prices & availability
Where to buy the Western Digital SN770M 2TB
Compare the offers we track for this model, across variants and retailers.
1 tracked offers · 1 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| Western Digital SN770M 2TB | Newegg | New | $400 | 50 | 2026-09-30 | View offer → |
| Western Digital SN770M 2TBMultiple variants available | Amazon Affiliate | Varies | Find on Amazon | Not tracked | No price snapshot | Find on Amazon → |
Prices are dated snapshots, not live quotes — confirm the final price at the store. New, refurbished and used offers are listed separately; used offers carry warranty and seller risk.
Where it stands in the field
Two different questions, side by side. Performance compares what the hardware can do; Value compares what that capability costs at today’s price. A product can rank high on one and low on the other — that gap is the point.
Performance Balanced
How much it can do. Price plays no part in this ranking.
#118 of 371 graded solid state drives
- #115 Western DigitalWestern Digital Blue SN5000 2TB 37
- #116 Western DigitalWestern Digital Blue SN5000 1TB 37
- #117 Western DigitalWestern Digital Black SN770 2TB 35
- #118 Western DigitalWestern Digital SN770M 2TB 35
- #119 Western DigitalWestern Digital Black SN770 1TB 35
- #120 Western DigitalWestern Digital SN770M 1TB 35
- #121 TeamGroupTeamGroup FORCE G50 4TB 34
Value Balanced
How much of that you get for today’s price.
#123 of 371 currently priced solid state drives
- #120 PatriotPatriot P400 Lite 2TB 51
- #121 PNYPNY XLR8 CS3040 1TB 50
- #122 ADATAADATA LEGEND 860 1TB 50
- #123 Western DigitalWestern Digital SN770M 2TB 50
- #124 Silicon PowerSilicon Power A60 2TB 50
- #125 TranscendTranscend 250S 4TB 50
- #126 TeamGroupTeamGroup MP44L 500GB 49
Performance System Drive
How much it can do. Price plays no part in this ranking.
#118 of 371 graded solid state drives
- #115 Western DigitalWestern Digital Blue SN5000 2TB 37
- #116 Western DigitalWestern Digital Blue SN5000 1TB 37
- #117 Western DigitalWestern Digital Black SN770 2TB 35
- #118 Western DigitalWestern Digital SN770M 2TB 35
- #119 Western DigitalWestern Digital Black SN770 1TB 35
- #120 Western DigitalWestern Digital SN770M 1TB 35
- #121 TeamGroupTeamGroup FORCE G50 4TB 34
Value System Drive
How much of that you get for today’s price.
#130 of 371 currently priced solid state drives
- #127 Western DigitalWestern Digital Black SN770 500GB 17
- #128 Western DigitalWestern Digital WD Green SN3000 1TB 17
- #129 PNYPNY CS2241 2TB 17
- #130 Western DigitalWestern Digital SN770M 2TB 17
- #131 MSIMSI SPATIUM M461 2TB 17
- #132 PatriotPatriot VP4000 Mini 1TB 17
- #133 CrucialCrucial 1TB 16
Performance Game
How much it can do. Price plays no part in this ranking.
#93 of 371 graded solid state drives
- #90 KingstonKingston NV3 2TB 25
- #91 Western DigitalWestern Digital Blue SN5000 2TB 25
- #92 Western DigitalWestern Digital Black SN770 2TB 25
- #93 Western DigitalWestern Digital SN770M 2TB 25
- #94 PatriotPatriot VP4000 Mini 2TB 25
- #95 Silicon PowerSilicon Power UD90 2TB 25
- #96 TeamGroupTeamGroup NV5000 2TB 25
Value Game
How much of that you get for today’s price.
#111 of 371 currently priced solid state drives
- #108 CrucialCrucial P5 2TB 61
- #109 CorsairCorsair MP700 PRO 2TB 61
- #110 CrucialCrucial P2 2TB 60
- #111 Western DigitalWestern Digital SN770M 2TB 60
- #112 PatriotPatriot Viper VP4300 Lite 1TB 60
- #113 ADATAADATA Legend 960 1TB 60
- #114 Western DigitalWestern Digital Black SN770 1TB 60
Performance Heavy Creative Work
How much it can do. Price plays no part in this ranking.
#114 of 371 graded solid state drives
- #111 Western DigitalWestern Digital Blue SN5000 1TB 36
- #112 Western DigitalWestern Digital Black SN770 1TB 35
- #113 Western DigitalWestern Digital Black SN770 2TB 35
- #114 Western DigitalWestern Digital SN770M 2TB 35
- #115 Western DigitalWestern Digital SN770M 1TB 35
- #116 TeamGroupTeamGroup FORCE G50 4TB 34
- #117 TeamGroupTeamGroup FORCE G50 2TB 34
Value Heavy Creative Work
How much of that you get for today’s price.
#119 of 371 currently priced solid state drives
- #116 Silicon PowerSilicon Power UD90 4TB 13
- #117 Silicon PowerSilicon Power US75 4TB 13
- #118 MSIMSI SPATIUM M461 2TB 13
- #119 Western DigitalWestern Digital SN770M 2TB 13
- #120 TeamGroupTeamGroup NV5000 1TB 12
- #121 PatriotPatriot VP4000 Mini 2TB 12
- #122 Western DigitalWestern Digital SN770M 1TB 12
These ladders follow the preset scenario shown above. Your own weights re-score this product, not the whole field.
What it is good for
| Scenario | this productCapability grade · Value at current price | Higher capability | Higher Value with current priorities |
|---|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value50 | Higher capability Crucial T710 1TB 91 +189% capability · -45% price | Higher Value with current priorities Crucial T705 2TB 100 +182% capability · -13% price |
| System DriveScenario capability | GradeA Value17 | Higher capability Higher capability · Higher Value with current priorities Crucial T710 1TB S 100 +189% capability · -45% price | |
| Game & File StorageScenario capability | GradeA Value60 | Higher capability Higher capability · Higher Value with current priorities TeamGroup Force Vulcan 4TB S 86 +100% capability · -15% price | |
| Heavy Creative WorkScenario capability | GradeA Value13 | Higher capability Higher capability · Higher Value with current priorities Western Digital SN8100 2TB S 87 +189% capability · +0% price | |
Balanced has no letter: it is a weighting preset, not a capability rubric. A grade answers “how well does this handle that job?” — price is never part of it. Relative Value puts the current market price back in.
Trade-offs
Works well if
- System Drive is your main prioritygraded A for System Drive on the same rubric as the tier list
Consider other options if
- You want strong value with Balanced priorities specificallyat today's market no realistic price for this model reaches strong value with Balanced priorities — the calculation only gets there near $203, against a cheapest tracked $400
- Value for money matters more to you than this exact modelCrucial T705 2TB holds Relative Value 100 against its 50 with Balanced priorities, at $350
Works well if
- System Drive is your main prioritygraded A for System Drive on the same rubric as the tier list
Consider other options if
- You want strong value for System Drive specificallycompeting products deliver so much more for System Drive per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- Value for money matters more to you than this exact modelCrucial T710 1TB holds Relative Value 100 against its 17 for System Drive, at $220
Works well if
- Game is your main prioritygraded A for Game on the same rubric as the tier list
Consider other options if
- You want strong value for Game specificallyat today's market no realistic price for this model reaches strong value for Game — the calculation only gets there near $259, against a cheapest tracked $400
- Value for money matters more to you than this exact modelTeamGroup Force Vulcan 4TB holds Relative Value 86 against its 60 for Game, at $340
Works well if
- Heavy Creative Work is your main prioritygraded A for Heavy Creative Work on the same rubric as the tier list
Consider other options if
- You want strong value for Heavy Creative Work specificallycompeting products deliver so much more for Heavy Creative Work per dollar that no price this model realistically trades at reaches the strong-value mark for this job
Every line states the fact it was derived from, for the scenario selected above. Thresholds are calculated points on our value curve — information about where the maths turns, not instructions about what to pay.
Similar options to the Western Digital SN770M 2TB
Chosen for Balanced
Chosen for System Drive
Chosen for Game
Chosen for Heavy Creative Work
Alternatives stay near this product’s price range. Step-up options may exceed the standard budget envelope when the capability gain is meaningful.
Upgrade planner
Judge the change in the active scenario, then make the cash gap explicit.
Using page scenarioWhat are you upgrading from? These are the axes we compare on, and where this product stands in the current market.
Capability differences are expressed as tiers and index points, not as benchmark percentages we did not measure.
Specifications & compatibility
What this product is, and what to check before it goes into your build.
Performance
- Sequential read
- 5150 MB/s
- Sequential write
- 4850 MB/s
- Random read
- 0 IOPS
- Random write
- 0 IOPS
- Controller
- SanDisk Proprietary
Media
- Capacity
- 2 TB
- NAND type
- SanDisk 112-layer TLC
- DRAM cache
- None (DRAM-less)
Power / Interface
- Interface
- M.2 PCIe 4.0 x4
- Form factor
- M.2-2230
Physical / Outputs
- Heatsink included
- No
Show all specifications
Endurance & warranty
- Endurance
- 1200 TBW
- Warranty
- 5 years
- Manufacturer part number
- WDBDNH0020BBKWRSN
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-09-30
What to check in your build
M.2-2230
The slot must take M.2-2230
M.2 PCIe 4.0 x4
PCIe 4.0 M.2 slot for full speed
PCIe 4.0 — runs in older slots at their speed
Fits under an M.2 shroud
Bare drive — it fits under a motherboard M.2 shroud
Does not fit the PS5 expansion bay
The PS5 bay takes M.2 2280 NVMe drives only
Found an error? Report this specification Email the field, corrected value and an optional source.
Compatibility guidance is practical help, not a score. Missing data is shown as unknown, never invented.
Summary
Western Digital SN770M 2TB offers a balanced view across an all-round mix of priorities. It ranks #118 by capability in the current modelled field. Its clearest measured strength is drive capability 5150. Crucial T705 2TB currently clears the same practical bar with stronger Relative Value.
Western Digital SN770M 2TB offers A-grade capability for System Drive. It ranks #118 by capability in the current modelled field. Its clearest measured strength is drive capability 5150. Crucial T705 2TB currently clears the same practical bar with stronger Relative Value.
Western Digital SN770M 2TB offers A-grade capability for Game. It ranks #93 by capability in the current modelled field. Its clearest measured strength is drive capability 5150. Crucial T705 2TB currently clears the same practical bar with stronger Relative Value.
Western Digital SN770M 2TB offers A-grade capability for Heavy Creative Work. It ranks #114 by capability in the current modelled field. Its clearest measured strength is drive capability 5150. Crucial T705 2TB currently clears the same practical bar with stronger Relative Value.
FAQ
Why does Relative Value change when I choose another scenario?
Each scenario changes the weights applied to capability, price and the other published factors. The hardware facts stay fixed, but the value question changes, so its score and rank can change too.
Why can Amazon appear without a tracked price?
Amazon is shown as a discovery link when we do not have a permitted verified price snapshot. It is excluded from price comparisons, rankings and Relative Value until a compliant tracked price exists.
Useful links & sources
offer frame 2026-09-30 · formula ssd-value-v1.5 · facts facts-2026-09-30 · Relative Value is an estimate from our current dataset, the selected weights and dated market prices — not an official product rating and not a price forecast. Target prices are calculation thresholds, not predictions. Methodology We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.