microSD Express Doubles Speeds, New SD Express Speed Classes Introduced
SD Association (SDA) today announced the latest evolution of SD Express memory cards doubling microSD Express memory card speed up to 2GB/s, plus four new SD Express Speed Classes to ensure guaranteed minimum sequential performance levels in the new SD 9.1 specification including support of Multi-stream access and related Power and Thermal Management assuring the guaranteed performance.
- SD Association (SDA) today announced the latest evolution of SD Express memory cards doubling microSD Express memory card speed up to 2GB/s, plus four new SD Express Speed Classes to ensure guaranteed minimum sequential performance levels in the new SD 9.1 specification including support of Multi-stream access and related Power and Thermal Management assuring the guaranteed performance.
- microSD Express was introduced with 985 MB/s speed maximum data transfer rate and the NVMe upper layer protocol in the SD 7.1 specification.
- The SD Express Speed Classes are used exclusively on SDXC, SDUC, microSDXC and microSDUC memory cards offering the SD Express bus.
- The SDA has prepared a whitepaper providing more details about the new features and SD Express Speed Classes defined by SD 9.1.