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- Best overall: Western Digital WD_BLACK SN850X NVMe SSD 2TB
- Best budget: Western Digital WD Blue SN580 NVMe SSD 1TB
- Best premium: Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition
- Best for everyday 2TB storage: Western Digital WD Blue SN580 NVMe SSD 2TB
- The Western Digital WD_BLACK SN850X NVMe SSD 4TB is the high-capacity, high-speed choice, with sequential reads up to 7,300 MB/s.
- The Western Digital WD Blue SN580 NVMe SSD 2TB offers a practical value-focused option, with sequential reads up to 4,150 MB/s.
- Choose a heatsink-equipped Western Digital WD_BLACK SN850X NVMe SSD for PS5 installation; confirm the console’s M.2 requirements before fitting any drive.
- For a laptop upgrade, check the M.2 2280 size, PCIe generation, available capacity and device-maker compatibility before choosing.
The Western Digital WD_BLACK SN850X NVMe SSD 4TB is the faster, roomier pick, while the Western Digital WD Blue SN580 NVMe SSD 2TB is a sensible choice for everyday PC upgrades. Both are M.2 2280 PCIe 4.0 drives, but their speeds, capacity options and cooling needs suit different buyers.
For this Black Friday 2026 guide, I researched and compared specs, reviews and owner feedback across seven WD drives. The SN850X line targets demanding gaming and large workloads; the SN580 emphasizes efficient everyday performance. The right choice depends on your system, storage needs and whether you need a heatsink—not just the model name.
How We Picked
- Compared manufacturer-listed sequential read and write speeds, capacities and endurance ratings.
- Included seven distinct WD drive configurations so buyers can compare performance and storage choices.
- Considered suitability for desktop PCs, laptop upgrades and PS5 expansion, including heatsink requirements.
- Reviewed product specifications, owner feedback and common compatibility considerations rather than relying on headline speed alone.
- Prioritized clear use cases, practical trade-offs and product configurations that are easy to distinguish.
Comparison Table
| Product | Best for | Max sequential read (MB/s) | Capacity | Heatsink |
|---|---|---|---|---|
| Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition | PS5 or PC with heatsink clearance | 7,300 | 4TB | Integrated |
| Western Digital WD_BLACK SN850X NVMe SSD 4TB | Desktop with motherboard cooling | 7,300 | 4TB | Not included |
| Western Digital WD_BLACK SN850X NVMe SSD 2TB | High-performance gaming | 7,300 | 2TB | Configuration dependent |
| Western Digital WD_BLACK SN850X NVMe SSD 1TB | Fast, focused upgrade | 7,300 | 1TB | Configuration dependent |
| Western Digital WD Blue SN580 NVMe SSD 2TB | Everyday 2TB storage | 4,150 | 2TB | Not included |
| Western Digital WD Blue SN580 NVMe SSD 1TB | Everyday laptop or desktop upgrade | 4,150 | 1TB | Not included |
| Western Digital WD_BLACK SN770 NVMe SSD 2TB | Balanced gaming performance | 5,150 | 2TB | Not included |
Best Picks Reviewed
#1
Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition
The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition is the best high-capacity gaming SSD for buyers who want fast storage and built-in cooling. Sequential reads reach 7,300 MB/s, and its integrated heatsink suits compatible PS5 and desktop installations.
Best for: Large game libraries and compatible PS5 or desktop builds
- Capacity
- 4TB
- Max sequential read
- 7,300 MB/s
- Max sequential write
- 6,600 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Large 4TB capacity
- High sequential read and write speeds
- Integrated heatsink
- Needs enough physical clearance for its heatsink
- Performance exceeds basic everyday storage needs
Is the Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition worth buying on Black Friday 2026?
Yes. The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition combines 4TB of capacity, reads up to 7,300 MB/s and an integrated heatsink. Choose it for compatible PS5 or PC systems that need fast, spacious storage.
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#2
Western Digital WD_BLACK SN850X NVMe SSD 4TB
The Western Digital WD_BLACK SN850X NVMe SSD 4TB is the best no-heatsink option for desktop builders who want a large, fast drive. The Western Digital WD_BLACK SN850X NVMe SSD 4TB's 7,300 MB/s maximum sequential read speed and 4TB capacity fit demanding game libraries and creative projects.
Best for: Desktop PCs with a motherboard heatsink or airflow plan
- Capacity
- 4TB
- Max sequential read
- 7,300 MB/s
- Max sequential write
- 6,600 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Spacious 4TB capacity
- Fast PCIe 4.0 performance
- Works with compatible motherboard cooling
- No included heatsink
- Not a fit for systems that require a heatsink-equipped drive
Is the Western Digital WD_BLACK SN850X NVMe SSD 4TB worth buying on Black Friday 2026?
Yes. The Western Digital WD_BLACK SN850X NVMe SSD 4TB delivers up to 7,300 MB/s sequential reads and 4TB of storage. The Western Digital WD_BLACK SN850X NVMe SSD 4TB is a strong desktop choice when the motherboard provides a suitable M.2 heatsink or the build has another cooling solution.
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#3 · Top pick
Western Digital WD_BLACK SN850X NVMe SSD 2TB
The Western Digital WD_BLACK SN850X NVMe SSD 2TB is the best balanced high-performance SSD for gamers who want fast loading without moving to 4TB. The drive reaches 7,300 MB/s sequential reads and fits compatible PCIe 4.0 M.2 systems.
Best for: Gaming PCs and demanding 2TB upgrades
- Capacity
- 2TB
- Max sequential read
- 7,300 MB/s
- Max sequential write
- 6,600 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Fast performance for gaming and large files
- 2TB is a useful balance of space and capacity
- Heatsink and non-heatsink configurations are available
- Some systems need a separate heatsink
- Older PCIe systems do not use its full speed
Is the Western Digital WD_BLACK SN850X NVMe SSD 2TB worth buying on Black Friday 2026?
Yes. The Western Digital WD_BLACK SN850X NVMe SSD 2TB offers up to 7,300 MB/s sequential reads and enough space for a substantial game library. Check whether your PC or console needs the heatsink version before selecting a configuration.
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#4
Western Digital WD_BLACK SN850X NVMe SSD 1TB
The Western Digital WD_BLACK SN850X NVMe SSD 1TB is the best compact-capacity performance upgrade for buyers who prioritize speed over a huge library. The Western Digital WD_BLACK SN850X NVMe SSD 1TB's sequential read speed reaches 7,300 MB/s, while the 1TB capacity suits a focused set of games and applications.
Best for: Fast upgrades with a smaller storage requirement
- Capacity
- 1TB
- Max sequential read
- 7,300 MB/s
- Max sequential write
- 6,300 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Fast sequential reads
- M.2 2280 form factor
- Heatsink and non-heatsink versions are offered
- 1TB fills faster than larger capacities
- Check cooling and device compatibility
Is the Western Digital WD_BLACK SN850X NVMe SSD 1TB worth buying on Black Friday 2026?
Yes. The Western Digital WD_BLACK SN850X NVMe SSD 1TB reaches 7,300 MB/s sequential reads in compatible PCIe 4.0 systems. The 1TB size makes sense for a performance-focused upgrade with a smaller collection of games and applications.
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#5
Western Digital WD Blue SN580 NVMe SSD 2TB
The Western Digital WD Blue SN580 NVMe SSD 2TB is the best value-focused capacity choice for everyday PC users who want a spacious PCIe 4.0 drive. Sequential reads reach 4,150 MB/s, giving it a solid balance for applications, media and gaming.
Best for: Everyday PC storage and value-focused upgrades
- Capacity
- 2TB
- Max sequential read
- 4,150 MB/s
- Max sequential write
- 4,150 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Spacious 2TB capacity
- Efficient everyday PCIe 4.0 performance
- Compact, single-sided M.2 design
- Slower sequential performance than the SN850X
- No included heatsink
Is the Western Digital WD Blue SN580 NVMe SSD 2TB worth buying on Black Friday 2026?
Yes. The Western Digital WD Blue SN580 NVMe SSD 2TB pairs 2TB of space with sequential reads up to 4,150 MB/s. The Western Digital WD Blue SN580 NVMe SSD 2TB is a practical choice for everyday computing and gaming when top-tier SN850X speeds are not essential.
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#6
Western Digital WD Blue SN580 NVMe SSD 1TB
The Western Digital WD Blue SN580 NVMe SSD 1TB is the best budget-minded everyday upgrade for laptop and desktop owners who need a responsive drive. The Western Digital WD Blue SN580 NVMe SSD 1TB's sequential read speed reaches 4,150 MB/s, and the M.2 2280 design fits many compatible systems.
Best for: Everyday laptops and desktop upgrades
- Capacity
- 1TB
- Max sequential read
- 4,150 MB/s
- Max sequential write
- 4,150 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- Good everyday speed
- Simple M.2 2280 format
- A sensible step up from older storage
- 1TB offers less room than the 2TB version
- No integrated heatsink
Is the Western Digital WD Blue SN580 NVMe SSD 1TB worth buying on Black Friday 2026?
Yes. The Western Digital WD Blue SN580 NVMe SSD 1TB offers sequential reads up to 4,150 MB/s and a useful 1TB capacity. Confirm your laptop or desktop supports an M.2 2280 PCIe NVMe drive before upgrading.
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#7
Western Digital WD_BLACK SN770 NVMe SSD 2TB
The Western Digital WD_BLACK SN770 NVMe SSD 2TB is the best middle-ground gaming SSD for buyers who want 2TB without choosing the faster SN850X tier. Sequential reads reach 5,150 MB/s, making it a capable PCIe 4.0 option for compatible PCs.
Best for: 2TB gaming builds seeking balanced performance
- Capacity
- 2TB
- Max sequential read
- 5,150 MB/s
- Max sequential write
- 4,850 MB/s
- Interface and size
- PCIe 4.0 x4, M.2 2280
- 2TB capacity for game libraries
- Faster sequential reads than the SN580
- Compact M.2 2280 design
- Slower than the SN850X
- No integrated heatsink
Is the Western Digital WD_BLACK SN770 NVMe SSD 2TB worth buying on Black Friday 2026?
Yes. The Western Digital WD_BLACK SN770 NVMe SSD 2TB provides 2TB of storage and sequential reads up to 5,150 MB/s. The Western Digital WD_BLACK SN770 NVMe SSD 2TB suits gaming PCs that need more speed than the SN580 but do not require the SN850X’s top performance.
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What is the difference between the WD Black SN850X 4TB and WD Blue SN580?
The Western Digital WD_BLACK SN850X NVMe SSD 4TB reaches 7,300 MB/s sequential reads, while the Western Digital WD Blue SN580 NVMe SSD 2TB reaches 4,150 MB/s. The SN850X is the performance-first line, and the SN580 is the practical everyday alternative.
Capacity matters as much as speed. The SN850X is available in a 4TB configuration, while the SN580 line tops out at 2TB. A larger drive gives room for more games and large files; the SN580’s lower performance ceiling remains ample for many routine PC tasks. Check your device’s M.2 compatibility and cooling before choosing either model.
Which WD SSD is best for gaming and PS5?
The Western Digital WD_BLACK SN850X NVMe SSD 2TB is a strong gaming choice, with sequential reads up to 7,300 MB/s and a useful 2TB capacity. The 4TB SN850X option suits larger libraries, while the WD_BLACK SN770 provides a more moderate performance tier.
For PS5 expansion, choose a drive configuration with a heatsink that meets Sony’s fit and performance requirements. The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition has an integrated heatsink, but confirm the console’s current clearance guidance before installation. A desktop motherboard heatsink does not always fit inside a console.
Is the WD Blue SN580 fast enough for everyday use?
The Western Digital WD Blue SN580 NVMe SSD 1TB reaches 4,150 MB/s sequential reads, which is ample for common productivity, browsing and media tasks on a compatible PCIe 4.0 PC. The 2TB configuration provides extra room while keeping the same listed maximum read speed.
The SN580 is a sensible choice when everyday responsiveness and capacity matter more than top-tier sequential throughput. Large file transfers and demanding workloads make the SN850X’s higher speeds more relevant. Laptop owners should also check the manufacturer’s supported drive size, available slot and installation rules before ordering.
Should you choose a heatsink or a bare M.2 SSD?
The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition is the straightforward option when a compatible system needs an integrated heatsink. The standard Western Digital WD_BLACK SN850X NVMe SSD 4TB suits a desktop build that already provides compatible M.2 cooling.
Heatsink choice is a fit question as well as a cooling question. A large heatsink can conflict with a laptop cover, motherboard shield or PS5 drive bay. Check the product configuration and device clearances before purchase. The WD Blue SN580 and WD_BLACK SN770 configurations listed here do not include integrated heatsinks.
What should you check before buying a WD SSD on Black Friday 2026?
The Western Digital WD_BLACK SN850X and WD Blue SN580 are M.2 2280 PCIe 4.0 NVMe drives, but a buyer should still verify the exact system requirements before choosing a model. Check the supported interface, drive length, capacity limit and available cooling.
Then match capacity to your use: 1TB suits a focused upgrade, 2TB accommodates a larger set of games and projects, and 4TB is for extensive storage needs. Compare the exact product configuration, since an SN850X heatsink edition and a standard version are not interchangeable in every enclosure. Read the manufacturer’s compatibility information for the PC, laptop or console.
Buying Guide
Choose capacity before speed
The Western Digital WD_BLACK SN850X NVMe SSD 4TB provides 4TB, while the Western Digital WD Blue SN580 NVMe SSD is available up to 2TB. Select capacity based on the games, creative files and applications you plan to keep installed.
Match speed to your workload
The Western Digital WD_BLACK SN850X NVMe SSD reaches 7,300 MB/s reads; the WD Blue SN580 reaches 4,150 MB/s. Everyday computing suits the SN580, while large transfers and demanding gaming favor the SN850X.
Confirm physical fit and cooling
The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition includes cooling, but its height needs clearance. Check your device’s M.2 2280 support and heatsink space before selecting a heatsink or standard drive.
Check the host device’s PCIe support
The Western Digital WD Blue SN580 NVMe SSD and WD_BLACK SN850X use PCIe 4.0 x4. A compatible PCIe 4.0 system unlocks their listed interface speeds; older systems run according to their own supported capability.
FAQ
Is the WD Black SN850X 4TB better than the WD Blue SN580 2TB?
The Western Digital WD_BLACK SN850X NVMe SSD 4TB is better for maximum speed and capacity, reaching 7,300 MB/s sequential reads and offering 4TB. The Western Digital WD Blue SN580 NVMe SSD 2TB is the more practical everyday choice when 2TB and 4,150 MB/s reads meet your needs.
Which WD SSD is best for PS5 expansion?
The Western Digital WD_BLACK SN850X NVMe SSD 4TB, Heatsink Edition is a strong PS5 option because it combines up to 7,300 MB/s sequential reads with an integrated heatsink. Confirm the PS5’s current M.2 size, performance and clearance requirements before installation.
Does the WD Blue SN580 have a heatsink?
The Western Digital WD Blue SN580 NVMe SSD 1TB and 2TB configurations listed here do not include an integrated heatsink. Check whether the laptop, desktop motherboard or other host device provides suitable cooling and enough space for the M.2 drive.
What is the maximum capacity of the WD Blue SN580?
The Western Digital WD Blue SN580 NVMe SSD line reaches a maximum listed capacity of 2TB. Choose the 2TB configuration for a larger game library or media collection; buyers needing 4TB should compare the Western Digital WD_BLACK SN850X NVMe SSD 4TB.
Is the WD Black SN770 faster than the WD Blue SN580?
The Western Digital WD_BLACK SN770 NVMe SSD 2TB has a higher listed sequential read speed at 5,150 MB/s, compared with 4,150 MB/s for the Western Digital WD Blue SN580 NVMe SSD. Both are PCIe 4.0 M.2 drives, and real performance depends on the host system and workload.