Obsessed with technology?
Subscribe to the latest tech news as well as exciting promotions from us and our partners!
By subscribing, you indicate that you have read & understood the SPH's Privacy Policy and PDPA Statement.
News
News Categories

New SD card spec will enable transfer speeds of up to 3,940MB/s

By Kenny Yeo - on 20 May 2020, 10:05am

New SD card spec will enable transfer speeds of up to 3,940MB/s

(Image source: SD Association)

The SD Association has just announced the new SD 8.0 Specification for SD Express memory cards.

These new cards employ the use of PCIe Express 4.0 and NVMe to achieve transfer speeds of up to 3,940MB/s (~4GB/s).

That's a massive increase from current SD Express cards which top out at 985MB/s, and UHS-III SD cards which max out at 624MB/s.

However, achieving the full potential of these new cards will require a compatible reader that supports two PCIe 4.0 lanes. Otherwise, transfer speeds will be limited to 2GB/s when using PCIe 3.0.

These high transfer speeds are achieved by a new pin layout on the back of the cards which can use one or two PCIe 4.0 lanes.

As 4K and 8K phones and TVs become more commonplace, there's a need for storage media that can keep up and capture photos and videos in ever-increasing resolutions and bit rates.

The new SD 8.0 Specification will be available on SDHC, SDXC, and SDUC cards. And perhaps more importantly, will be backwards compatible. This means you'll be able to use new SD 8.0 SD cards on older devices.

(Image: SD Association.)

Source: SD Association via Gizmodo