SanDisk - Extreme PRO 2TB (Portable) vs SK hynix - Platinum P51 2TB
Between the Extreme PRO 2TB (Portable) and Platinum P51 2TB, the Extreme PRO 2TB (Portable) comes out ahead in endurance (tbw) / interface, while the Platinum P51 2TB wins on sequential read / sequential write. Overall, the Extreme PRO 2TB (Portable) scores 52.5 and the Platinum P51 2TB scores 89.8 on our Mars Score.
Which should you buy?
The Platinum P51 2TB is the clear pick on raw spec strength, leading by 37.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Extreme PRO 2TB (Portable) if you care most about endurance (tbw) / interface. The biggest gaps in its favor are endurance (tbw), interface.
Pick the Platinum P51 2TB if you care most about sequential read / sequential write. Its strongest claims are sequential read, sequential write.
Both ship with comparable capacity, so those specs do not separate the two — focus on the differences below.
Bottom line: the Platinum P51 2TB is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why SanDisk - Extreme PRO 2TB (Portable) wins
- ▲Endurance (TBW) — 66.67% more. 2000 vs 1200.
- ▲Interface: USB 3.2 Gen 2x2 (vs PCIe 5.0 x4).
Why SK hynix - Platinum P51 2TB wins
- ▲Sequential read — 635.00% more. 14700 MB/s vs 2000 MB/s.
- ▲Sequential write — 570.00% more. 13400 MB/s vs 2000 MB/s.
Spec comparison
Capacity
| Spec | SanDisk - Extreme PRO 2TB (Portable) | SK hynix - Platinum P51 2TB |
|---|---|---|
| Capacity | 2000 GB | 2000 GB |
Performance
| Spec | SanDisk - Extreme PRO 2TB (Portable) | SK hynix - Platinum P51 2TB |
|---|---|---|
| Sequential read | 2000 MB/s | 14700 MB/slead |
| Sequential write | 2000 MB/s | 13400 MB/slead |
| Interface | USB 3.2 Gen 2x2lead | PCIe 5.0 x4 |
| Form factor | Portable USBlead | M.2 2280 |
Endurance
| Spec | SanDisk - Extreme PRO 2TB (Portable) | SK hynix - Platinum P51 2TB |
|---|---|---|
| Endurance (TBW)ⓘ | 2000lead | 1200 |
| Warranty | 5 yrs | 5 yrs |
Spec-level deep dives
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