UHS-II is a different category of SD card entirely. Where UHS-I cards top out at 104MB/s on a single row of pins, UHS-II adds a second row to push the interface ceiling to 312MB/s. The SanDisk Extreme PRO 32GB UHS-II SDHC Memory Card operates at 300MB/s read and 260MB/s write — figures that only make sense paired with a camera that supports UHS-II. The V90 rating is the key spec for professional use: it guarantees a minimum sustained write of 90MB/s at all times, not just peak. This matters when the camera is writing a continuous 4K RAW stream or a sustained RAW burst sequence — a V30 card can stall under that load where a V90 cannot. At 32GB, this is the card that fits in a professional camera kit bag as a reliable daily-use card, where speed is the priority over raw capacity. Compatible cameras include the Canon EOS R series, Nikon Z series, Sony Alpha series, Fujifilm X-T series and Panasonic S series, among others. Write-protect switch prevents accidental formatting. RescuePRO Deluxe recovery software is included. Lifetime SanDisk warranty. Note: UHS-II speeds require a UHS-II compatible camera or card reader — in UHS-I devices this card operates at UHS-I speeds.
UHS-II Interface
300/260 MB/s — Why Two Rows of Pins Matter
Standard SD and UHS-I cards use a single row of electrical contacts on the back of the card. UHS-II adds a second row of pins, creating a faster data pathway that raises the interface ceiling from 104MB/s to 312MB/s. The SanDisk Extreme PRO uses this to deliver 300MB/s read — meaning a full 32GB card offloads to a UHS-II compatible reader in approximately 2 minutes rather than over 5. At the camera end, 260MB/s write handles the highest-bitrate recording modes that professional mirrorless cameras offer. The second row of pins is backwards compatible — this card works in UHS-I slots and cameras but operates at UHS-I speeds (up to 104MB/s) when the host does not support UHS-II.
V90 — The Professional Standard
90MB/s Minimum Write — No Stalls Under Load
Video Speed Class ratings define the minimum guaranteed sustained write speed — not average, not peak. V30 guarantees 30MB/s minimum. V60 guarantees 60MB/s. V90 guarantees 90MB/s sustained at all times, regardless of how much data is already on the card or how long the camera has been recording. 8K RAW video at 12-bit requires approximately 2,000Mbps — around 250MB/s write. 4K RAW on high-end mirrorless cameras regularly exceeds 400Mbps. V90 is the only Video Speed Class that reliably handles these workloads without dropped frames or recording interruptions. For photographers, V90 means even the most aggressive RAW burst sequences — 20fps+ on a full-frame sensor — will not exhaust the card’s buffer clearance rate.
Professional Build
Write-Protect Switch · RescuePRO · Lifetime Warranty
The mechanical write-protect switch on the side of the card locks it against accidental formatting or deletion — critical when the card holds an entire day’s RAW files during a shoot. Shock, temperature, waterproof and X-ray resistant construction provides field durability. RescuePRO Deluxe data recovery software (included as a download code) can restore accidentally deleted photos and videos — a practical safety net for a card used in professional or semi-professional contexts. The lifetime SanDisk warranty covers manufacturing defects for the life of the product. Pair with a UHS-II compatible reader such as the SanDisk Professional PRO-READER SD and microSD for maximum 300MB/s offload speeds.
Great choice if you…
✔ Own a UHS-II compatible mirrorless camera or DSLR
✔ Shoot continuous 4K RAW or high-bitrate video
✔ Need V90 minimum sustained write for demanding burst sequences
✔ Want the fastest possible card-to-computer offload speed
✔ Use Canon EOS R, Nikon Z, Sony Alpha, Fujifilm X-T or Panasonic S series
Consider something else if…
✖ Your camera only supports UHS-I — a UHS-I Extreme PRO will deliver the same in-camera speed at a lower price
✖ You need more than 32GB — UHS-II versions are available in 64GB and 128GB
✖ You need a microSD card — this is a full-size SDHC card only
UHS-II Compatible Cameras (Selected)
Canon EOS R3 / R5 / R5 C / R6 Mark II · Nikon Z9 / Z8 / Z7 II / Z6 III · Sony A1 / A9 III / A7R V / A7S III / FX3 · Fujifilm X-H2S / X-T5 / GFX100 II · Panasonic S5 II / S1R · Olympus OM-1. Always verify UHS-II support in your specific camera model’s manual before purchase.
Technical Specifications
| Brand / Model | SanDisk Extreme PRO UHS-II SDHC |
| Form Factor | Full-size SD (SDHC) |
| Capacity | 32GB |
| Interface | UHS-II (dual-row pins) · backwards compatible with UHS-I |
| Read Speed | Up to 300MB/s |
| Write Speed | Up to 260MB/s |
| Speed Class | UHS-II · U3 · V90 · Class 10 |
| Video | 4K · 8K RAW · Full HD |
| Protection | Shock · Temperature · Water · X-ray resistant |
| Write Protect | Mechanical switch (on card) |
| Warranty | Lifetime (SanDisk) |
Box Contents
Compatible With (UHS-II devices)
Condition
Brand New — Retail Packaging
Warranty
Lifetime SanDisk
Delivery
4–5 Working Days · Fully Tracked
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