Higher quality media requires greater data rates to capture it. This means that storage requirements call for greater speed and capacity. The newest DSLRs are able to take high speed continuous bursts at 20 megapixels+ per image, resulting in 20-50MB per RAW image taken. To record 4K video, cameras typically eat up around 20-30MB/s per second minimum! With data rates like these, storage manufacturers have to release products that meet these requirements.