Lexar Professional 2933x 64GB XQD 2.0 Card Review with reader benchmarks and camera write speed comparison - Camera Memory Speed Comparison & Performance tests for SD and CF cards
Sony 120GB (128GB pre format) XQD High Speed G-Series Flash Memory Card with XQD USB 3.0 Reader ( Read 440MB/s and Write 400MB/s) - QDG120F-USB : Amazon.co.uk: Computers & Accessories
SanDisk on new XQD memory card format: 'Meh' - CNET