SANDISK Extreme SDSQXH9-256G-GZ6MA 256 GB microSDXC Card, UHS-I, V30

Choosing a memory card for demanding video calls for room to record and speed to move files. The SANDISK Extreme microSDXC card brings 256 GB of storage together with UHS-I connectivity and V30 and U3 video speed ratings.

Read speeds reach up to 245 MB/s, while write speeds reach up to 170 MB/s. These maximum speeds give you a practical way to capture and transfer content, with the supplied adapter adding flexibility when using the card with compatible devices.

It is designed for 5K and 4K UHD video, and its A2 rating also supports app use on compatible Android devices. That makes it a versatile choice for recording, expanding storage and managing everyday files.

Benefits

For action cameras and drones, the 256 GB capacity provides space for extended recording sessions before you need to make room for more footage. V30 and U3 ratings identify the card for video recording, while the advertised 5K and 4K UHD support suits creators capturing high-resolution point-of-view or aerial clips. Actual device compatibility and recording options depend on the equipment being used.

The card can also expand storage in compatible smartphones, tablets, laptops and handheld gaming consoles. Its A2 rating is relevant when using apps on an Android device, and SANDISK Memory Zone is available for organizing, backing up and transferring photos and videos. Buyers’ comments highlight speed, storage capacity and compatibility, views on value for money are mixed.

What to know

This is a 256 GB microSDXC card with UHS-I connectivity. Maximum read speed is up to 245 MB/s and maximum write speed is up to 170 MB/s. These are stated maximums, and transfer speeds can depend on the host device and setup. The card carries Class 10, U3, V30 and A2 ratings, with 5K and 4K UHD video use identified in the product details.

SANDISK describes the card as resistant to water, dust, temperature, magnetic fields and X-rays, the product details also identify shock and drop resistance. The included adapter can help when a compatible device uses a different card slot. Check the device’s supported card format and recording requirements when choosing storage for a specific camera, phone or console.

Best use cases

This card is well suited to recording action-camera footage, capturing aerial video with a drone, or adding storage to a compatible Android device. For a day of filming, its 256 GB capacity gives you room to keep more clips together on one card, while the high stated read speed can help when transferring footage to a computer. It also fits everyday storage needs for photos, videos and files on compatible tablets, laptops and handheld gaming consoles.

Compared with choosing a card primarily for basic file storage, this model brings video speed ratings and 5K and 4K UHD capture support to the decision. It is a particularly relevant fit when video recording is a key use and the device supports microSDXC media.

Questions before you buy

Which devices can use this card? It is listed for action cameras, handheld gaming consoles, laptops, smartphones and tablets. The device must support the card format, and the adapter can be used where the compatible slot calls for it.

What video formats are identified for the card? The product is specified for 5K and 4K UHD video, with U3 and V30 video speed ratings. Confirm that the recording device supports the format and settings you plan to use.

What are its maximum speeds? The stated maximum read speed is 245 MB/s, and the stated maximum write speed is 170 MB/s. These figures are maximum ratings rather than guaranteed speeds in every device.

When it makes sense

Choose the SANDISK Extreme when you want a single 256 GB microSDXC card for high-resolution video capture and broader device storage. Its UHS-I interface, V30 and U3 ratings, A2 classification and supplied adapter make it useful across compatible cameras and personal devices, with ample space for footage, photos and files.