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SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle — main product image
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle
SanDisk

SanDisk 128G_SD_Extreme_Pro_R3 SDXC Memory Card Bundle

★★★★★4.3 (38 reviews)
4KUHD

170MB/s reads and a bundled USB 3.0 reader eliminate the post-shoot transfer bottleneck for 4K-shooting professionals.

$33.16*$35.11Save 5%
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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 SDXC Extreme Pro occupies the upper tier of UHS-I performance, delivering read speeds up to 170MB/s and write speeds up to 90MB/s. To put those numbers in context: a photographer offloading 128GB of mixed RAW and 4K footage via USB 3.0 can complete the transfer in under 15 minutes — a workflow difference that compounds across every shooting day. The V30 video speed class certification means the card maintains at least 30MB/s sustained writes, which is the threshold for uninterrupted 4K UHD recording at standard bitrates. The U3 rating confirms the same guarantee under the UHS speed class system. Together, these ratings mean the card won't be the limiting factor in any current UHS-I camera body.

This bundle pairs the card with an Everything But Stromboli USB 3.0 SD/Micro reader, giving users a complete import solution out of the box. The card itself carries SanDisk's four-point environmental protection: waterproof, temperature-proof across a wide range (-13°F to 185°F), shockproof, and X-ray proof. For working photographers, the temperature certification is particularly relevant — cards stored in hot cars or cold winter bags are operating at temperature extremes regularly. The 128GB capacity hits the practical sweet spot for professional use: large enough to avoid mid-shoot card swaps, small enough to keep backups affordable.

Key Features

Bundle includes (1) 128gb SD Extreme Pro memory card and (1) Everything But Stromboli (TM) 3.0 SD/Micro Card Reader

Compatible with Canon EOS 5D Mark IV, 6D Mark II, 7D Mark II and many other models of digital cameras

Can read speeds of up to 170MB/s speed. Write speeds of up to 90MB/s

UHS speed Class 3 (U3) and video speed Class 30 (V30) for 4K UHD video

The card of choice for professionals who need efficiency and speed in post-production

Specifications

Capacity
128 GB
Read Speed
Up to 170 MB/s
Write Speed
Up to 90 MB/s
UHS Speed Class
3 (U3)
Video Speed Class
30 (V30)
Video Resolution Support
4K UHD
Included Accessories
Everything But Stromboli (TM) 3.0 SD/Micro Card Reader
Compatibility
Canon EOS 5D Mark IV, 6D Mark II, 7D Mark II, and other digital cameras

Pros & Cons

👍 Pros

  • 170MB/s read speed reduces large RAW+video dump times to a fraction of what slower cards require — measurable in minutes on a full 128GB card.
  • 90MB/s write speed provides a 3x buffer above the V30 minimum floor, supporting high-bitrate 4K codecs without dropped frames or buffer lockouts.
  • 128GB capacity is a practical working size — large enough to cover a full wedding or multi-day commercial shoot without swapping cards.
  • Bundled USB 3.0 reader means the card's read speed is accessible immediately, without relying on a camera's often-slower tethered transfer.
  • Four-point durability certification (water, temperature, shock, X-ray) adds genuine resilience for location and travel work.

👎 Cons

  • UHS-I bus architecture means cameras with UHS-II slots will not see the performance gains those bodies are capable of with a UHS-II card — the 170MB/s ceiling is a UHS-I limitation.
  • Write speed of 90MB/s, while strong for UHS-I, falls short of what UHS-II cards offer for sustained high-bitrate workflows like 8K or RAW video at extreme bitrates.
  • The bundled Everything But Stromboli card reader is a third-party accessory — build quality and long-term reliability are not on par with the SanDisk card itself.

Frequently Asked Questions

V30 guarantees a minimum sustained write speed of 30MB/s — the floor required for continuous 4K UHD video at typical bitrates. The 90MB/s rated write speed gives you significant headroom above that floor, which matters when cameras write high-bitrate codecs like ALL-I or RAW video variants.
Nearly. USB 3.0 has a theoretical ceiling of 625MB/s, so the interface won't bottleneck the card's 170MB/s rated read speed. Real-world throughput typically lands in the 140–160MB/s range depending on your host controller — still a substantial improvement over USB 2.0's ~25MB/s effective limit.
The SanDisk Extreme Pro SDXC operates on the UHS-I bus. It will work in UHS-II camera slots (backwards compatible) but will not achieve UHS-II speeds in those bodies. Cameras with UHS-I slots will see the full rated performance.
At a typical 4K bitrate of 100Mbps (12.5MB/s), 128GB gives you approximately 170 minutes of continuous recording. At higher bitrates (200Mbps), expect roughly 85 minutes. For stills, 128GB accommodates thousands of RAW files depending on resolution.
The card is rated waterproof, temperature-proof (operating range -13°F to 185°F), shockproof, and X-ray proof. These ratings are relevant for photographers working in harsh environments, not just theoretical protection.

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