SanDisk 512GB microSD Express Card vs SanDisk Extreme 128GB microSD
Specs compared
| Spec | SanDisk 512GB microSD Express Card | SanDisk Extreme 128GB microSD |
|---|---|---|
| Capacity | 512GB | 128GB |
| Interface | microSD Express | microSDXC UHS-I U3 |
| Form Factor | microSD | microSD |
| Read Speed | 800 MB/s | 160 MB/s |
| Write Speed | — | 90 MB/s |
| Endurance | — | — |
| Warranty | 10 years | 5 years |
| Value Score | 75.4 | 60.1 |
| Price / TB | $253.89/TB | $468.67/TB |
| Current Price | $129.99 | $59.99 |
Our verdict
SanDisk 512GB microSD Express Card significantly wins our Value Score comparison (75.4 vs 60.1), making it the better-value memory cards at current Amazon prices. The SanDisk 512GB microSD Express Card offers 512GB of storage vs 128GB for the SanDisk Extreme 128GB microSD. The SanDisk Extreme 128GB microSD is cheaper at $59.99 vs $129.99, so if budget is the priority, consider it as an alternative. Value Score is calculated daily from price, price per TB, read speed, endurance TBW, and warranty — so rankings shift as prices change. Check back to see if today's winner still leads.
Value Score combines price per TB (35%), speed (25%), endurance (20%), warranty (10%), and reviews (10%). Updated daily from Amazon.