Memory specialist SanDisk has created an SD card with 512 gigabytes (512GB) of storage space – the highest capacity ever released. The card, which is the size of a postage stamp, will go on sale for $800 (£490). The launch comes a decade after the firm released a 512-megabyte (MB) SD card with one-thousandth of the space. Experts believe SD cards could eventually hold up to 2 terabytes (TB) of […]