Amazon has started selling the 1TB version of the Sandisk Extreme, announced earlier this year, which means you can potentially load up your smartphone or camera with more storage space than your laptop. It is temporarily out of stock as it is out of order earlier in the day, indicating a backlog in orders. At $450 (roughly $350, $650 AU) on Sandisk's online store, it represents a significant premium over the small capacity. The 128GB version, for example, costs just over $26 (about $20, AU$40), which is less than half the price per GB. The card (known as SDSQXA1-1T00-GN6MA) comes with a lifetime warranty and, Sandisk says, is waterproof, shockproof, and X-ray proof. With a playback speed of up to 90 Mbps, the Sandisk Extreme is supports the new V30 speed class and can record 4K video smoothly.