Sony announced the World’s fastest SD card:
The SF-G series boasts an ultra-fast write speed up to 299 MB/s – fast enough to support continuous shooting of high-resolution images with high performance DSLRs supporting the UHS-II interface.
There is no info about the US/EU price yet. Only Sony Japan unveiled the pricing: 128GB will cost 49,000 YEN (around $400), the 64GB card 25,000 YEN ($220) and the 32GB card 15,000 YEN ($130).