SanDisk Extreme SDSQXH9 microSD Card 128GB
- 128GB capacity, adapter included
- Up to 245MB/s read, up to 120MB/s write
- UHS-I, U3, V30, C10, A2 speed classes
- 5K and 4K UHD video recording
- Temperature, water, shock and X-ray proof
- Memory Zone app for backup on desktop or Android
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A fast card for action cameras, drones and Android phones that record high-resolution video. Write speed on this size is lower than the larger cards in the same line.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0G8LLXFJHCategory: Micro SD Cards
Styles Available
Need a different one? Pick on Amazon →
Overview
Recording high-resolution video in an action camera or drone, this SanDisk Extreme card holds the stream steadily thanks to its video speed class. It also suits Android phones and tablets, with app-performance support for running apps from the card.
Sustained write speed for video is why creators buy it, so long clips do not drop frames. This capacity writes slower than the larger sizes in the line, so check that your camera's bitrate fits.
Who it's for
Drone pilots and action camera users get a card rated for steady video writing in rough conditions. People filming all day may outgrow this size and should weigh a larger card.
Pros and cons
- Video speed class for high-resolution recording
- Fast read for quick transfers
- App-performance class for phones
- Rugged against water, heat and shocks
- Write speed lower than larger capacities
- Full speed footnotes not shown in listing
- Capacity fills fast with high-resolution video
Performance notes
Recording stability depends on the minimum sustained write rate promised by the video speed class, not the headline read figure. Read speed matters most when offloading clips to a computer. Small app files load quicker thanks to the app-performance class.
Specifications
| Brand | Sandisk |
|---|---|
| Capacity & performance | |
| Read speed | Up to 245MB/s |
| Capacity | 128GB |
| Speed class | U3, V30, C10 |
| Application performance class | A2 |
| Write speed | Up to 120MB/s |
| Compatibility & installation | |
| Bus interface | UHS-I |
| Included components | |
| Included components | microSD card, adapter |
| Warranty & support | |
| Video support | 5K and 4K UHD |
| Other details | |
| Durability | Temperature, humidity, water, shock, drop, magnet, X-ray and wear-out proof |
| Model number | SDSQXH9-128G-GZ6MA |
Frequently asked questions
Is the SanDisk Extreme 128GB fast enough for 4K drone video?
It carries U3 and V30 video speed classes and lists 5K and 4K UHD recording, and SanDisk names drones and action cams as uses. Check your camera's bitrate needs as well.
Does the SanDisk Extreme 128GB write at 170MB/s?
No. The 170MB/s figure applies to the 256GB to 1TB sizes. This 128GB card lists write speeds up to 120MB/s.
Can I run Android apps from the SanDisk Extreme card?
It carries the A2 app-performance class, which is aimed at running apps on Android devices.
Does it come with an adapter?
Yes. The listing includes an adapter with the card.