SanDisk 32G_TF_Extreme_R4BLK 32GB Extreme 4K MicroSD Card — main product image

SanDisk 32G_TF_Extreme_R4BLK 32GB Extreme 4K MicroSD Card

SanDisk

SanDisk 32G_TF_Extreme_R4BLK 32GB Extreme 4K MicroSD Card

Name: SanDisk 32G_TF_Extreme_R4BLK 32GB Extreme 4K MicroSD Card
Brand: SanDisk
SKU: 32G_TF_Extreme_R4BLK

★★★★★4.5 (65 reviews)

4KUHD

A fast 32GB microSD card rated for 4K video capture at up to 90MB/s read speeds, bundled with a USB card reader.

$13.20*

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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 Extreme 32GB microSDHC card is built for devices that demand fast, reliable storage for high-resolution video and burst photography. With UHS-I U3 and V30 speed classifications, it guarantees a minimum sustained write speed of 30MB/s — the threshold required for recording 4K UHD video without dropped frames. Maximum read speeds reach up to 90MB/s, and write speeds top out at 60MB/s, which keeps file transfers reasonably quick when moving footage from the card to a computer.

This particular bundle pairs the card with an Everything But Stromboli USB card reader, providing an immediate way to offload files for users whose laptops or desktops lack a built-in microSD slot. The card is marketed for DJI drone compatibility — including the Mavic Pro, Spark, and Phantom 3 and 4 series — but it functions as a standard microSDHC card in any compatible device. The 32GB capacity is the main trade-off: sufficient for shorter recording sessions, but users capturing extended 4K footage will want to carry spares or consider a higher-capacity version of the same card line.

Key Features

Sandisk Extreme 32GB Micro SDHC Card with UHS-1 Class 10

Compatible with DJI Mavic Pro, Spark, Phantom 4, Phantom 3 Advanced, Professional, Standard Quadcopter Drone Cameras

Read speeds of up to 90MB/s; write speeds of up to 60MB/s

UHS speed Class 1 (U3), video speed Class 30 (V30) and Class 10 for 4K UHD and full HD video

Everything But Stromboli (tm) Memory Card Reader (Color May Vary)

Specifications

Brand

SanDisk

Model

32G_TF_Extreme_R4BLK

Capacity

32GB

Card Type

Micro SDHC

Speed Class

Class 10, UHS-I (U3), V30

Max Read Speed

Up to 90MB/s

Max Write Speed

Up to 60MB/s

4K UHD Support

Yes

Drone Compatibility

DJI Mavic Pro, Spark, Phantom 4, Phantom 3

Included Accessories

Everything But Stromboli USB Card Reader

Pros & Cons

👍 Pros

U3 and V30 speed ratings ensure reliable sustained writes for 4K UHD video recording
Read speeds up to 90MB/s allow fast file transfers when offloading footage
Bundled USB card reader adds convenience for users without a built-in card slot on their computer
Widely compatible microSDHC form factor works in drones, action cameras, smartphones, and more

👎 Cons

32GB capacity fills up quickly during 4K recording sessions, limiting continuous shoot time
Read speeds of 90MB/s are modest compared to newer UHS-II or A2-rated microSD cards
The card is microSDHC rather than microSDXC, reflecting an older specification
The bundled third-party card reader is a basic USB model that may not match the card's maximum transfer speeds

Frequently Asked Questions

What speed ratings does this SanDisk Extreme 32GB card carry?

It is rated UHS-I Class 3 (U3), Video Speed Class 30 (V30), and Class 10, meaning it meets the minimum sustained write speed requirements for recording 4K UHD video.

Is this card compatible with devices other than DJI drones?

Yes, it is a standard microSDHC card that works in any device with a microSD slot that supports UHS-I. It is marketed with DJI drone compatibility but functions in action cameras, smartphones, and other devices.

What card reader is included in this bundle?

The bundle includes an Everything But Stromboli USB memory card reader. The reader color may vary.

What are the actual read and write speeds of this card?

SanDisk rates the card at up to 90MB/s read speed and up to 60MB/s write speed under optimal conditions.

Is 32GB enough storage for 4K drone footage?

At typical 4K bitrates used by DJI drones, 32GB holds roughly 30 to 40 minutes of footage, so longer shoots will require swapping or carrying additional cards.