SanDisk

SanDisk 4326596443 128GB Extreme Pro MicroSDXC Card

4.6 (186 reviews)
4KUHD

95MB/s sequential reads and V30 video rating give this 128GB microSD the throughput to keep up with 4K capture and fast-burst shooting.

$24.20*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The SanDisk 128GB Extreme Pro microSDXC is a UHS-I Class 10 card rated at up to 95MB/s read speed, with both U3 and V30 classifications confirming a sustained 30MB/s write floor. In practical terms: the read speed means offloading a 32GB burst shoot takes roughly six minutes rather than fifteen. The V30 rating means the card maintains the write throughput required to record 4K UHD video without buffer underruns or dropped frames — even in devices that demand consistent sustained writes rather than burst capability. The 128GB capacity fits comfortably in the range where high-resolution shooters and videographers can work through a full session without swapping.

This card is built for mobile-first workflows — smartphones, action cameras, drones, and compact mirrorless bodies that take microSD rather than full SD. It's not designed for the professional cinema or high-speed sports photography workflows that demand UHS-II throughput; the single-row UHS-I interface is the hard ceiling here. For everyone else — travel photographers, vloggers, drone pilots, and anyone upgrading from a slow Class 10 card — the Extreme Pro delivers a noticeable, measurable performance improvement in both recording reliability and transfer speed. The ruggedized construction (waterproof to IPX7, shockproof, X-ray proof, temperature resistant) adds a legitimate durability argument for field use where cards take abuse. The included third-party card reader provides immediate usability out of the box, though dedicated users may want a faster reader to fully exploit the card's read speed ceiling.

Key Features

UHS Speed Class Video 30 (V30) 2 means that your card is ready for forays into virtual reality and 360 ° video record. In addition, it provides UHS Speed Class 3 (U3) to receive Full HD and 4K UHD videos

Extreme speed for your smartphone or tablet with up to 95MB / s

Supports UHS-I for the next generation of mobile devices. Compatible with Samsung Galaxy S8, S8+, S8 Note, S7, S7 Edge

RescuePRO Deluxe data recovery software

Comes with Everything But Stromboli Memory Card Reader

Specifications

Capacity
128GB
Type
microSDXC
Speed Class
Class 10, UHS-I U3, V30
Read Speed
Up to 95MB/s
Interface
UHS-I
Video Recording
4K UHD
Durability
Waterproof, shockproof, X-ray proof, temperature proof
Includes
Card, Everything But Stromboli card reader, RescuePRO Deluxe software

Pros & Cons

👍 Pros

  • Up to 95MB/s read speed dramatically cuts file transfer times when offloading large 4K video files or high-resolution burst sequences to a computer.
  • V30 and U3 dual ratings guarantee the 30MB/s minimum sustained write needed to prevent dropped frames during 4K UHD recording.
  • 128GB capacity handles extended 4K video sessions or thousands of RAW stills without requiring mid-shoot card swaps.
  • UHS-I compatibility is broadly supported across smartphones, action cameras, drones, and mirrorless cameras without needing a specialized card slot.
  • Waterproof, shockproof, and X-ray resistant construction means the card survives checked baggage, weather, and field mishaps that would kill lesser storage.

👎 Cons

  • UHS-I interface caps real-world read speeds well below what UHS-II cards achieve — users with UHS-II devices will leave throughput on the table.
  • Write speeds are not officially specified, which means users can't confirm the actual write ceiling before purchasing — an important metric for high-bitrate video workflows.
  • The included card reader is a third-party "Everything But Stromboli" unit, not a SanDisk branded reader, which may not deliver the card's full read-speed potential.
  • At 128GB, the card fills up in roughly 40–80 minutes of 4K footage depending on bitrate — power users shooting all-day events may need multiples.

Frequently Asked Questions

V30 guarantees a sustained minimum write speed of 30MB/s — that's the floor, not the ceiling. For 4K UHD video, which typically requires 60–100Mbps (roughly 7.5–12.5MB/s), V30 provides significant headroom. It also meets the U3 standard (minimum 30MB/s write), so both ratings confirm the same performance floor from two different classification systems.
Yes, this is a UHS-I card with a single row of pins. In a UHS-II slot, it will operate at UHS-I speeds (up to ~95MB/s read). If your device is UHS-II capable and you're doing heavy burst shooting or continuous 4K capture, a UHS-II card would eliminate this as the bottleneck. For most mobile devices, UHS-I throughput is sufficient.
The 95MB/s figure is the rated read speed. Write speeds are not specified on this card and are typically lower — benchmark tests on similar SanDisk Extreme Pro microSD cards show sequential write speeds in the 60–90MB/s range depending on the device and workload. Read speed matters most for file transfers to a computer; write speed is what determines recording reliability.
RescuePRO Deluxe is software that allows recovery of accidentally deleted files from the card. It's typically included as a downloadable license, not pre-installed. It's a useful safety net but should not replace regular backups — no recovery software guarantees 100% retrieval of overwritten data.
Yes — the SanDisk Extreme Pro is rated for water, shock, X-ray, and temperature resistance. These are tested to specific standards (IPX7 for water), meaning the card itself survives submersion and rough handling. The case it ships with does not carry the same ratings.