Western Digital SN7100 4TB
The current Western Digital SN7100 4TB price from retailers, its key specifications, and how it performs for each job.
Western Digital · SSD · PCIe 4.0
Works well for: System Drive, Game & File Storage, Heavy Creative Work
Trade-offs: you want strong value with Balanced priorities specifically
- Capacity
- 4 TB
- Interface
- M.2 PCIe 4.0 x4
- Sequential read
- 7000 MB/s
- Sequential write
- 6700 MB/s
- Endurance
- 2400 TBW
- Form factor
- M.2-2280
Move a slider and the page re-scores this product against the same market frame.
What does it cost today, and is that a good price?
Market confidence: LowAt $600 the Western Digital SN7100 4TB is priced in line with its $600 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
Western Digital SN7100 4TB: current price and offers
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 SN7100 4TB | CentralComputer | New | $600 | 45 | 2026-11-14 | View offer → |
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.
Performance and where it ranks
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.
#69 of 252 graded solid state drives
- #66 CrucialCrucial P310 1TB 48
- #67 Western DigitalWestern Digital Blue SN5100 1TB 48
- #68 CorsairCorsair MP600 ELITE 4TB 47
- #69 Western DigitalWestern Digital SN7100 4TB 47
- #70 SabrentSabrent Rocket Plus 4TB 47
- #71 Western DigitalWestern Digital Black SN850 2TB 47
- #72 SamsungSamsung 980 Pro 2TB 47
Value Balanced
How much of that you get for today’s price.
#99 of 252 currently priced solid state drives
- #96 PatriotPatriot P220 256GB 46
- #97 PatriotPatriot P320 1TB 46
- #98 PNYPNY CS2241 2TB 45
- #99 Western DigitalWestern Digital SN7100 4TB 45
- #100 PatriotPatriot P300 1TB 45
- #101 CorsairCorsair MP600 ELITE 4TB 45
- #102 PNYPNY CS1030 500GB 45
Performance System Drive
How much it can do. Price plays no part in this ranking.
#69 of 252 graded solid state drives
- #66 CrucialCrucial P310 1TB 48
- #67 Western DigitalWestern Digital Blue SN5100 1TB 48
- #68 CorsairCorsair MP600 ELITE 4TB 47
- #69 Western DigitalWestern Digital SN7100 4TB 47
- #70 SabrentSabrent Rocket Plus 4TB 47
- #71 Western DigitalWestern Digital Black SN850 2TB 47
- #72 SamsungSamsung 980 Pro 2TB 47
Value System Drive
How much of that you get for today’s price.
#124 of 252 currently priced solid state drives
- #121 TeamGroupTeamGroup MP33 PRO 512GB 23
- #122 CorsairCorsair MP600 PRO NH 2TB 22
- #123 Silicon PowerSilicon Power UD90 2TB 22
- #124 Western DigitalWestern Digital SN7100 4TB 22
- #125 CorsairCorsair MP600 ELITE 4TB 22
- #126 SamsungSamsung 980 Pro 2TB 22
- #127 Western DigitalWestern Digital WD Blue SN5000 4TB 22
Performance Game
How much it can do. Price plays no part in this ranking.
#20 of 252 graded solid state drives
- #17 SamsungSamsung 990 EVO Plus 4TB 26
- #18 CrucialCrucial P310 4TB 26
- #19 CorsairCorsair MP600 ELITE 4TB 26
- #20 Western DigitalWestern Digital SN7100 4TB 26
- #21 SabrentSabrent Rocket Plus 4TB 26
- #22 KingstonKingston NV3 4TB 26
- #23 Western DigitalWestern Digital WD Blue SN5000 4TB 26
Value Game
How much of that you get for today’s price.
#53 of 252 currently priced solid state drives
- #50 LexarLexar Professional NM1090 PRO 2TB 75
- #51 KingstonKingston NV3 4TB 75
- #52 Silicon PowerSilicon Power A60 2TB 75
- #53 Western DigitalWestern Digital SN7100 4TB 75
- #54 CorsairCorsair MP600 ELITE 4TB 75
- #55 Western DigitalWestern Digital Black SN750 1TB 75
- #56 TeamGroupTeamGroup AX2 1TB 75
Performance Heavy Creative Work
How much it can do. Price plays no part in this ranking.
#44 of 252 graded solid state drives
- #41 SeagateSeagate FireCuda 530R 4TB 49
- #42 PatriotPatriot Viper VP4300 Lite 2TB 49
- #43 CorsairCorsair MP600 PRO XT 2TB 49
- #44 Western DigitalWestern Digital SN7100 4TB 48
- #45 Western DigitalWestern Digital Blue SN5100 2TB 48
- #46 Western DigitalWestern Digital Blue SN5100 1TB 48
- #47 Western DigitalWestern Digital Black SN850X 8TB 47
Value Heavy Creative Work
How much of that you get for today’s price.
#61 of 252 currently priced solid state drives
- #58 Western DigitalWestern Digital Black SN770 2TB 56
- #59 Western DigitalWestern Digital Black SN770 1TB 56
- #60 Western DigitalWestern Digital WD Green SN3000 1TB 56
- #61 Western DigitalWestern Digital SN7100 4TB 55
- #62 Western DigitalWestern Digital Blue SN5000 2TB 55
- #63 CorsairCorsair MP600 ELITE 4TB 55
- #64 KingstonKingston KC3000 4TB 54
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 Value45 | Higher capability Crucial T710 1TB 81 +113% capability · -62% price | Higher Value with current priorities Western Digital SN7100 500GB 100 -3% capability · -84% price |
| System DriveScenario capability | GradeS
Value22 | Higher capability Crucial T710 1TB S 86 +113% capability · -62% price | Higher Value with current priorities Western Digital SN7100 500GB S 100 -3% capability · -84% price |
| Game & File StorageScenario capability | GradeS
Value75 | — | Higher Value with current priorities TeamGroup MP44Q 4TB S 91 +0% capability · -17% price |
| Heavy Creative WorkScenario capability | GradeS
Value55 | Higher capability Western Digital SN8100 2TB S 88 +109% capability · -25% price | Higher Value with current priorities Crucial T710 1TB S 100 +104% capability · -62% 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.
Compare these grades with the full tier list
Browse shortlists for different uses
Trade-offs
Works well if
- System Drive is your main prioritygraded S 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 $338, against a cheapest tracked $600
- Value for money matters more to you than this exact modelWestern Digital SN7100 500GB holds Relative Value 100 against its 45 with Balanced priorities, at $96
Works well if
- System Drive is your main prioritygraded S for System Drive on the same rubric as the tier list
Consider other options if
- You want strong value for System Drive specificallyat today's market no realistic price for this model reaches strong value for System Drive — the calculation only gets there near $165, against a cheapest tracked $600
- Value for money matters more to you than this exact modelWestern Digital SN7100 500GB holds Relative Value 100 against its 22 for System Drive, at $96
Works well if
- Game is your main prioritygraded S for Game on the same rubric as the tier list
- Strong-value threshold: ~$563$563 is where Relative Value reaches 80 for Game, in the 2026-11-09–2026-11-14 offer frame
Consider other options if
- Current price sits $37 above the strong-value threshold (~$563)cheapest tracked $600 against a $563 calculated threshold for Game
- Value for money matters more to you than this exact modelTeamGroup MP44Q 4TB holds Relative Value 91 against its 75 for Game, at $500
Works well if
- Heavy Creative Work is your main prioritygraded S for Heavy Creative Work on the same rubric as the tier list
Consider other options if
- You want strong value for Heavy Creative Work specificallyat today's market no realistic price for this model reaches strong value for Heavy Creative Work — the calculation only gets there near $287, against a cheapest tracked $600
- Value for money matters more to you than this exact modelCrucial T710 1TB holds Relative Value 100 against its 55 for Heavy Creative Work, at $230
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 SN7100 4TB
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.
More head-to-head comparisons in this category
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 and compatibility
What this product is, and what to check before it goes into your build.
Performance
- Sequential read
- 7000 MB/s
- Sequential write
- 6700 MB/s
- Random read
- 0 IOPS
- Random write
- 0 IOPS
- Controller
- SanDisk Custom
Media
- Capacity
- 4 TB
- NAND type
- TLC
- DRAM cache
- None (DRAM-less)
Power / Interface
- Interface
- M.2 PCIe 4.0 x4
- Form factor
- M.2-2280
Physical / Outputs
- Heatsink included
- No
Show all specifications
Endurance & warranty
- Endurance
- 2400 TBW
- Warranty
- 5 years
- Manufacturer part number
- WDS400T4X0E
Hover any value to see where it came from: a manufacturer specification, or a figure TheComparator.Tech calculated.
Sources: Comparator offer frame 2026-11-09–2026-11-14
What to check in your build
M.2-2280
The slot must take M.2-2280
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
Meets the PS5 expansion requirements
M.2 2280 NVMe, PCIe 4.0, 7000 MB/s read — meets Sony's published requirements; a heatsink is required
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 SN7100 4TB offers a balanced view across an all-round mix of priorities. It ranks #69 by capability in the current modelled field. Its clearest measured strength is drive capability 7000. Western Digital SN7100 500GB currently clears the same practical bar with stronger Relative Value.
Western Digital SN7100 4TB offers S-grade capability for System Drive. It ranks #69 by capability in the current modelled field. Its clearest measured strength is drive capability 7000. Western Digital SN7100 500GB currently clears the same practical bar with stronger Relative Value.
Western Digital SN7100 4TB offers S-grade capability for Game. It ranks #20 by capability in the current modelled field. Its clearest measured strength is drive capability 7000. TeamGroup MP44Q 4TB currently clears the same practical bar with stronger Relative Value.
Western Digital SN7100 4TB offers S-grade capability for Heavy Creative Work. It ranks #44 by capability in the current modelled field. Its clearest measured strength is drive capability 7000. Crucial P510 1TB 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.
Useful links & sources
offer frame 2026-11-09–2026-11-14 · formula ssd-value-v6.1 · facts facts-2026-11-14 · 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.