Sony announced new ultra high-speed XQD and SD memory cards along with adapters for newly launched cameras such as the Nikon D5 and the D500 that were launched at CES. The XQD-M series of cards have a read speed of up to 440MB/s and read speeds of 150MB/s, which should be perfect for burst capture of RAW images, 4K internal recording, and quickly transferring all that footage onto your computer. The XQD cards have a sturdier design for additional reliability. The new SD cards are UHS-II compliant and offer read speeds up to 260MB/s and write speeds up to 100MB/s. Sony also announced a new UHS-II supported card reader (MRW-E90) for quick transfers to a PC. It supports both the new XQD and SD cards that were announced and connects over USB 3.1. Availability and pricing will be announced...
Source: http://www.gsmarena.com/sony_announces_new_highspeed_xqd_and_sd_memory_cards-news-15957.php
