SanDisk reveals world’s first 4TB SD card for 8K video and storage bragging rights

Tech company Western Digital breaks new ground as they have created the world’s first 4TB microSD card for laptops and cameras, the SanDisk Extreme PRO SDUC UHS-1 memory card. The company says the upcoming SanDisk model is set to release next year “and will be showcased at NAB 2024” in Las Vegas.

We can infer much about the upcoming card’s performance by looking at its name. UHS-1 refers to the Ultra High Speed-1 interface, which boasts a maximum data transfer rate of 104 MB/s, according to AnandTech. High transfer speeds don’t really matter to the average person, as slower cards can meet most people’s needs, but speed matters greatly to photographers. 

Photographers who take a ton of pictures in rapid succession using a camera’s burst mode need SD cards that can keep up with them. Plus, the SanDisk 4TB card reportedly meets Video Speed Class V30, allowing it to support write speeds of 30MB/s. AnandTech states that level of speed is “good enough for 8K video recording.” If you’re going to shoot footage in 8K, you’ll need all the space you can get.


Besides that, very little is known about the SanDisk 4TB card, but its name does offer more interesting tidbits. SDUC, for example, stands for Secure Digital Ultra Capacity, which is a storage standard enabling drives of up to a theoretical maximum of 128TB.

AnandTech speculates the device could “support the off-spec DDR200/DDR208 mode” to push transfer rates beyond what UHS-1 can do normally. Speeds can get as high as 170 MB/s, as seen with the SanDisk Extreme Pro SDXC 1TB card. We wouldn’t be surprised if this new card has the same level of performance, if not a better. Of course, that’s assuming Western Digital decides to implement it in the first place.

For what it’s worth, the 1TB Extreme Pro card retails for $140 on Amazon at the time of this writing.  The 4TB SanDisk card will likely retail for several hundred dollars more.

Be sure to check out TechRadar’s list of the best SD cards for 2024. Spoiler alert: SanDisk shows up three times.

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