Sony’s New SF-G SDXC Memory Cards Can Write At Up To 299MB/s

If you’re looking to capture high-resolution video and refuse to let the storage become a bottleneck (no one could blame you), Sony’s brand-new SF-G series is worthy of note.

The cards will be available in densities of 32GB, 64GB, and 128GB, and offer freedom-inspiring read speeds of 300MB/s, and write speeds of 299MB/s. We’re not sure if that 1MB/s was simply impossible to eke out of this series, but that doesn’t matter. 299MB/s write is downright overkill for most users, and in some ways, that makes it pretty darn cool.

A card like this is targeted at those who capture 4K video, but in reality, it’s highly unlikely that anyone capturing at that resolution, or even a bit higher, would be able to push 299MB/s. If someone were able to, it means they’d fill up the entire 128GB card in about 7 minutes. That doesn’t seem too practical in the real-world. Those who capture a large number of photos in quick succession might actually be able to take better advantage of this speed right now, especially on high-end high-megapixel cameras.

Why isn’t there a card larger than 128GB? My guess is that achieving this kind of speed on even beefier densities simply proved too difficult, else I’m sure we’d see at least a 256GB model. There’s also the pricing aspect, although that’s hard to gauge since Sony is currently keeping mum on that.

Because this SDXC card is so fast, a card reader capable of handling the UHS-II interface is needed – which Sony itself will be offering. In case of disaster, the card will also include a license for File Rescue software – a nice little perk.

Sony hasn’t given a release date for these new cards, so if you’re interested, keep your eyes peeled to your favorite etailers.