SanDisk · Updated June 2026
SanDisk Extreme PRO microSDXC UHS-I 512GB: price, specs & release date
SanDisk Extreme PRO microSDXC UHS-I 512GB, released 2021. Every price and spec below is linked to its source and dated — no guesses.
Source: sandisk.com verified ✓ corroborated verify in ledger
The SanDisk Extreme PRO microSDXC UHS-I 512GB is listed at $126.2 on sandisk.com as of 2026-06-27, #8 cheapest of 11 memory cards (median $99.99); other retailers may be lower. It earns a Gold Deskmark — 40/100 pay-blind standing, #3 of 12 in class.
Verified Jun 27, 2026 · figures linked to their source in the table below
Cheapest memory cards: Samsung PRO Plus Full-Size SD 256GB (2023) — $31.99
- Best for Sequential read/write hit at or very close to rated specs (191/133 MB/s); Class-leading large-block sequential performance, beating Samsung PRO Plus.
- Skip if 4K random performance trails Samsung PRO Plus (601 vs 834 write IOPS, 1,349 vs 2,505 read IOPS) is a dealbreaker.
Is the SanDisk Extreme PRO microSDXC UHS-I 512GB a good buy?
At $126, the SanDisk Extreme PRO microSDXC UHS-I 512GB is #8 cheapest of the 11 memory cards we track, where the median is $99.99. On the spec sheet, its capacity of 512 GB is the highest of the 12, its max write of 140 Mbps is above the median of the 10, and its max read of 200 Mbps is at the median of the 12.
Evidence of Record
Our data- Independent labsmeasured it
- 1
- Physical metricsrecorded
- 1
- Outlets on recordall tested
- 1
One independent lab measured this product across 1 physical metric — speed. These numbers rest on a single hands-on source so far.
Review consensus · sourced & dated
What reviewers say about the SanDisk Extreme PRO microSDXC UHS-I 512GB
Only StorageReview, one whitelisted lab, hands-on-benchmarked this exact 512GB card. It measured 191MB/s read and 133MB/s write, at or near SanDisk's ratings, plus class-leading large-block sequential speed. The card trailed Samsung's PRO Plus on 4K random IOPS and fell just shy of its 200MB/s read spec. Single-source; no cross-tester corroboration.
Based on 1 review · 1 lab-tested · 2022-09-13
Tested by StorageReview
Consistently praised
- Sequential read/write hit at or very close to rated specs (191/133 MB/s)
- Class-leading large-block sequential performance, beating Samsung PRO Plus
- Rugged (water/temperature/shock-proof) with lifetime warranty; easy to recommend
Commonly flagged
- 4K random performance trails Samsung PRO Plus (601 vs 834 write IOPS, 1,349 vs 2,505 read IOPS)
- Measured read of 191.1 MB/s fell just under the rated 200 MB/s
Where reviewers disagree No cross-source disagreement possible: only one whitelisted tester (StorageReview) with hands-on measured data for this exact 512GB model was found. All praised/flagged points rest on this single source.
The sources (1)
Blackmagic Disk Speed Test sequential read: 191.1 MB/s · Blackmagic Disk Speed Test sequential write: 133.2 MB/s · IOMeter 2MB sequential read: 191 MB/s · IOMeter 2MB sequential write: 135 MB/s · IOMeter 2MB random read: 167 MB/s · IOMeter 2MB random write: 96 MB/s · IOMeter 4K random read: 1,349 IOPS · IOMeter 4K random write: 601 IOPS
The SanDisk Extreme Pro microSD card performed extremely well in our testing, hitting at or very close to its rated numbers
Samsung did noticeably better in the 4K random tests, though those numbers are less important if your needs are based around large files.
Overall, the Extreme Pro microSD is easy to recommend for high-performance needs.
Specifications
| Price (US) | $126.2 bulkmemorycards single-unit price, June 2026 ($119.85 in bulk); mainstream retail volatile due to 2026 NAND shortage |
|---|---|
| Brand | SanDisk |
| Released | 2021 |
| Format | microsd |
| Capacity (GB) | 512 |
| Speed class | u3_v30 |
| Max read (Mbps) | 200 |
| Max write (Mbps) | 140 |
| Application class | a2 |
| Warranty | limited lifetime |
Source: sandisk.com (verified 2026-06-19) · corroborated by bulkmemorycards.com. SanDisk.com confirmed model SDSQXCD-512G-GN6MA, 200MB/s read and 140MB/s write (SanDisk spec; some retailers list 90MB/s write for older stock). bulkmemorycards (fetched) listed $126.20 single-unit. Limited lifetime warranty / A2 / V30 per SanDisk.
Is the SanDisk Extreme PRO microSDXC UHS-I 512GB worth it vs cheaper memory cards?
SanDisk Extreme PRO microSDXC UHS-I 512GB against its closest cheaper and pricier memory cards on the specs that matter — every value sourced. See all 11 ranked
| Product | Price | Format | Capacity (GB) | Speed class | Max read (Mbps) | Max write (Mbps) |
|---|---|---|---|---|---|---|
| SanDisk Extreme PRO microSDXC UHS-I 512GB this | $126.2 | microsd | 512 | u3_v30 | 200 | 140 |
| SanDisk Extreme microSDXC UHS-I 256GB | $100 | microsd | 256 | u3_v30 | 190 | 130 |
| Delkin BLACK UHS-II SDXC V90 128GB | $149.99 | sd | 128 | v90 | 300 | 250 |
Frequently asked questions
What do reviewers say about the SanDisk Extreme PRO microSDXC UHS-I 512GB?
Only StorageReview, one whitelisted lab, hands-on-benchmarked this exact 512GB card. It measured 191MB/s read and 133MB/s write, at or near SanDisk's ratings, plus class-leading large-block sequential speed. The card trailed Samsung's PRO Plus on 4K random IOPS and fell just shy of its 200MB/s read spec. Single-source; no cross-tester corroboration. Praised: Sequential read/write hit at or very close to rated specs (191/133 MB/s); Class-leading large-block sequential performance, beating Samsung PRO Plus; Rugged (water/temperature/shock-proof) with lifetime warranty; easy to recommend. Flagged: 4K random performance trails Samsung PRO Plus (601 vs 834 write IOPS, 1,349 vs 2,505 read IOPS); Measured read of 191.1 MB/s fell just under the rated 200 MB/s. (From 1 tester review, 1 lab-tested.)
How much does the SanDisk Extreme PRO microSDXC UHS-I 512GB cost?
The SanDisk Extreme PRO microSDXC UHS-I 512GB has a US price of $126.2 (bulkmemorycards single-unit price, June 2026 ($119.85 in bulk); mainstream retail volatile due to 2026 NAND shortage), as of 2026-06-19.
How does the SanDisk Extreme PRO microSDXC UHS-I 512GB compare on price?
At $126, the SanDisk Extreme PRO microSDXC UHS-I 512GB is #8 cheapest of the 11 memory cards we track, where the median is $99.99.
When was the SanDisk Extreme PRO microSDXC UHS-I 512GB released?
The SanDisk Extreme PRO microSDXC UHS-I 512GB was released 2021.
What are the SanDisk Extreme PRO microSDXC UHS-I 512GB's key specs?
SanDisk Extreme PRO microSDXC UHS-I 512GB (SanDisk): format microsd, capacity gb 512, speed class u3_v30, max read mbps 200, max write mbps 140. Full sourced spec sheet verified 2026-06-19.
Price of record: $126.2 at sandisk.com, 2026-06-27. Other retailers may be lower — check the current price:
See SanDisk Extreme PRO microSDXC UHS-I 512GB on Amazon As an Amazon Associate we earn from qualifying purchases.Similar memory cards
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