microSD Express doubles speeds, new SD Express speed classes introduced

SD Association (SDA) announced the latest evolution of SD Express memory cards that double the speed of microSD Express memory cards up to 2GB/s, plus four new SD Express speed classes to ensure minimum guaranteed levels of sequential performance in the new SD 9.1 specification, including support for Multi-stream access and related Power and Thermal Management ensuring guaranteed performance. SD 9.1 helps consumers identify the right card for their device while giving manufacturers new tools to ensure the minimum performance level of SD Express memory cards.