SanDisk

SanDisk SDSDXEP-128G-GN4IN 128GB Extreme PRO UHS-II SD Card

4.8 (1368 reviews)
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Capture 6K and 4K UHD video with V60-rated speed and offload footage at up to 280MB/s with this pro-grade SD card.

$101.40*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.

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Overview

The SanDisk SDSDXEP-128G-GN4IN Extreme PRO UHS-II SD card is built for professionals and prosumers who need dependable, high-speed storage for demanding photo and video work. With a UHS-II interface delivering read speeds up to 280MB/s and write speeds up to 100MB/s, it dramatically reduces the time spent transferring large files from card to computer. The Video Speed Class 60 (V60) rating guarantees a sustained write speed of 60MB/s, which supports cinema-quality 6K and 4K UHD video recording on compatible cameras without dropped frames or recording interruptions.

Beyond raw speed, the card is engineered for reliability in the field. SanDisk has rated it as water-proof, X-ray-proof, magnetic-proof, temperature-proof, and drop-proof, so it can withstand the rigors of outdoor, travel, and event photography. The 128GB capacity provides meaningful storage for high-resolution RAW images and extended video clips, though professionals shooting long-form 6K content may want to carry additional cards. The UHS-II interface is backward-compatible with UHS-I devices, ensuring the card works in older hardware even if at reduced speeds.

Key Features

For prosumers and professionals shooting with MIL and cinema cameras

Record cinema-quality 6K and 4K UHD with Video Speed Class 60 rating (Full HD (1920x1080), 4K UHD (3840x2160), and 6K (6144x3160) video support may vary based upon host device, file attributes and other factors. See HD page on official SanDisk website. Video Speed Class 60 (V60), sustained video capture rate of 60MB/s, designates a performance option designed to support real-time video recording with UHS enabled host devices. See the SD Association’s official website for additional details.)

Capture superlative continuous burst mode and time lapse images with shot speeds up to 100MB/s (Up to 100MB/s write speed. Based on internal testing; performance will vary based on host device. 1MB = 1,000,000 bytes.)

Save time with card offloads reaching transfer speeds up to 280MB/s (Up to 280MB/s read speed. Based on internal testing; performance will vary based on host device. 1MB = 1,000,000 bytes.)

Store more high-resolution files with capacity options up to 128GB (1GB = 1,000,000,000 bytes. Actual user storage less.)

Specifications

Brand
SanDisk
Model
SDSDXEP-128G-GN4IN
Capacity
128GB
Card Type
SDXC UHS-II
Speed Class
C10, U3, V60
Read Speed
Up to 280MB/s
Write Speed
Up to 100MB/s
Video Support
6K, 4K UHD
Durability
Water-proof, X-ray-proof, Magnetic-proof, Temperature-proof, Drop-proof

Pros & Cons

👍 Pros

  • V60 speed class supports sustained 6K and 4K UHD video recording without dropped frames
  • 280MB/s read speed significantly reduces file transfer and offload times
  • Multi-proof durability protects against water, X-rays, magnets, temperature extremes, and drops
  • 128GB capacity holds substantial amounts of high-resolution photo and video files

👎 Cons

  • UHS-II speeds require a compatible card reader and camera to reach full performance
  • 100MB/s write speed may not keep up with the highest bitrate 8K or RAW video formats
  • V60 rating falls short of V90 cards needed for some cinema cameras at maximum quality settings
  • 128GB can fill up quickly when shooting extended 6K footage

Frequently Asked Questions

The SanDisk Extreme PRO UHS-II is designed for prosumer and professional MIL and cinema cameras that support the UHS-II interface. It is backward-compatible with UHS-I devices, though transfer speeds will be limited to the host device's capability.
Yes, with sustained write speeds up to 100MB/s and a V60 speed class rating, this card supports continuous burst mode shooting and time-lapse capture without buffer delays on compatible cameras.
Yes, you need a UHS-II compatible SD card reader to reach the maximum 280MB/s read speed. A standard UHS-I reader will work but will be limited to lower transfer rates.
The card is rated as water-proof, X-ray-proof, magnetic-proof, temperature-proof, and drop-proof, making it well-suited for shooting in demanding outdoor environments.