Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
Western Digital
94 Overall Score
vs
SanDisk PRO-BLADE 1TB Portable USB
SanDisk
41 Overall Score
What Buyers Say
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
No customer feedback yet
SanDisk PRO-BLADE 1TB Portable USB
72 out of 100 medium confidence 12 reviews
The SanDisk Pro-Blade ecosystem earns praise for its clever modular design, fast speeds, and portability, especially among video editors and professionals. However, reliability concerns are significant: multiple users reported defective units, power failures, and overheating, with one unit failing after 90 days. The high cost of entry and expensive accessories are common criticisms, though many find the convenience worth it. Overall, sentiment is positive but tempered by durability and value concerns.
Pros
- Clever modular blade design
- Fast read/write speeds
- Portable and lightweight
- Great for video editing
- Physical project organization
Cons
- Expensive ecosystem entry
- Reliability concerns (power failures)
- Overheating issues
- Loud fan noise
- Defective units reported
Design 5
Speed 5
Reliability 4
Value for money 4
Portability 3
Fan noise 2
Scores
Console
Gaming
Workstation
Budget
Laptop
Portable
Specifications
| Western Digital WD_BLACK SN850X | SanDisk PRO-BLADE | |
|---|---|---|
| Drive | ||
| Capacity | ||
| Form Factor | M.2 2280 | External |
| Interface | PCIe 4.0 x4 | USB |
| Protocol | NVMe | NVMe |
| PCIe Generation | 4★ | — |
| External | ✗ | ✓ |
| Performance | ||
| Sequential Read (MB/s) | ||
| Sequential Write (MB/s) | No data | |
| Random Read (IOPS) | No data | |
| Random Write (IOPS) | No data | |
| Hardware | ||
| NAND | TLC★ | — |
| DRAM Cache | ✓★ | — |
| Reliability | ||
| Endurance (TBW) | No data | |
| MTBF (hours) | No data | |
| Warranty (years) | 3★ | — |
| Features | ||
| Heatsink | ✓★ | — |
Pros & Cons
Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280
- Strong random (96th percentile)96th %ile
- Strong social proof (95th percentile)95th %ile
- Strong feature (94th percentile)94th %ile
- Strong capacity (93rd percentile)93rd %ile
- Below average affordability (9th percentile)9th %ile
SanDisk PRO-BLADE 1TB Portable USB
- Below average endurance (15th percentile)15th %ile
- Below average feature (15th percentile)15th %ile
- Below average user sentiment (29th percentile)
Verdict
Winner: Western Digital WD_BLACK SN850X
Scores 94 overall, wins 5 of 6 usage categories and 12 of 16 specs.