About a year after the CompactFlash Association announced the CFast 2.0 draft spec, SanDisk has revealed its new Extreme Pro CFast 2.0 memory card. The first of its kind, SanDisk says read speeds of up to 450MB/s and write speeds of up to 350MB/s make it the world's fastest memory card, period. Speed isn't the only improvement either, as the cards claim a tougher, pinless design and even unique serial numbers that owners can register with customer support. For now however, its use is going to be quite limited. The only camera ready for it at launch is the just-announced Arri Amira, although the Arri XT and Classic (with the XR module) cameras can also use it with an adapter. For those still using traditional CompactFlash storage for their 4K shooting the company is stretching the limits there too, with a new 256GB card that it says has the highest capacity ever. That extra storage will cost you however, with a price of $1,809 for the new 256GB version. There's no word on a price for the CFast 2.0 cards or their USB 3.0-equipped reader, but pro videographers in the US and Europe should be able to find them soon at specialty shops and Arri-authorized locations.