SanDisk Extreme Pro Portable V2 4TB
USB 3.2 Gen 2x2 · 2000/2000 MB/s · 4TB
Corsair MP700 PRO XT
PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #3
Corsair MP700 PRO XT takes it — here’s why.
In our weighted Specdex score, SanDisk Extreme Pro Portable V2 4TB lands at 85 and Corsair MP700 PRO XT at 88. That puts Corsair MP700 PRO XT ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick SanDisk Extreme Pro Portable V2 4TB if…
- ✓Plug-and-play (portable)
- ✓Competitive per-GB cost
- ✓3-5 year warranties typical
Pick Corsair MP700 PRO XT if…
- ✓Top 3 on PassMark Disk Score — flagship-tier sequential + random performance
- ✓Pro-tier controller and DRAM cache for sustained throughput
- ✓PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Corsair MP700 PRO XTSpecdex score per dollar at MSRP
Corsair MP700 PRO XT more score per dollar ($249 vs $393).
Score breakdown
Specs side-by-side
| Spec | SanDisk Extreme Pro Portable V2 4TB | Corsair MP700 PRO XT |
|---|---|---|
| Interface | USB 3.2 Gen 2x2 | PCIe 5.0 x4 NVMe 2.0 |
| Capacity | 4TB | — |
| Read/Write | 2000/2000 MB/s | — |
| Release year | 2021 | — |
| Form factor | — | M.2 2280 |
| Sequential read | — | 14,900 MB/s |
| Sequential write | — | 14,500 MB/s |
| Random read | — | 2,700,000 IOPS |
| Random write | — | 3,300,000 IOPS |
| Controller | — | Phison E28 (6nm) |
| NAND | — | 218-layer Kioxia BiCS8 3D TLC |
| DRAM | — | yes (dedicated DRAM cache chip) |
| Endurance | — | 1,400 TBW |
| Warranty | — | 5 years |
| PassMark Disk Score | — | 93,137 |
| PassMark rank | — | #3 of 100 consumer SSDs |
| Spec basis | — | 2TB reference SKU — TBW/IOPS vary by capacity |
SanDisk Extreme Pro Portable V2 4TB
- +Plug-and-play (portable)
- +Competitive per-GB cost
- +3-5 year warranties typical
- −Portable variants are USB-only
- −SATA models capped ~550 MB/s
- −DRAM-less drives slower sustained
Corsair MP700 PRO XT
- +Top 3 on PassMark Disk Score — flagship-tier sequential + random performance
- +Pro-tier controller and DRAM cache for sustained throughput
- +PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
- −PCIe 5.0 drives run hot — heatsink or motherboard M.2 cooling recommended
- −Pricing varies — confirm current retail before purchase
FAQ: SanDisk Extreme Pro Portable V2 4TB vs Corsair MP700 PRO XT
Which is better, SanDisk Extreme Pro Portable V2 4TB or Corsair MP700 PRO XT? +
Corsair MP700 PRO XT scores 88 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is SanDisk Extreme Pro Portable V2 4TB worth the price? +
At $393, SanDisk Extreme Pro Portable V2 4TB delivers a Specdex score of 85 — strongest in read.
Is Corsair MP700 PRO XT worth the price? +
At $249, Corsair MP700 PRO XT delivers a Specdex score of 88 — strongest in passmark_disk.
Does SanDisk Extreme Pro Portable V2 4TB or Corsair MP700 PRO XT last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, SanDisk Extreme Pro Portable V2 4TB or Corsair MP700 PRO XT? +
Corsair MP700 PRO XT — more score per dollar ($249 vs $393). Specdex score per dollar at MSRP.