Micron has announced a new line of solid-state drives that are the first to incorporate the company's 25nm NAND process. The RealSSD C400 drives, marketed under the Crucial brand, will be available in 1.8-inch and 2.5-inch form factors with capacities ranging from 64GB to 512GB. Like the RealSSD C300 before it, the new family of drives supports the 6GB/s SATA III interface while read and write speeds have been bumped up to 415MB/s and 260MB/s, respectively.

That’s a significant improvement over the read speeds of 355MB/s and write speeds of 215MB/s offered by it predecessor, though write speeds will vary depending on the model – for example, the 64GB variant maxes out at just 95MB/s. The company also touts other standard SSD features such as low power consumption (less than 80mW at idle and between 2.3-4.9W under load), lightweight construction, and resistance to shock and vibration.

Micron said that it's currently working with notebook manufacturers to bring the C400 SSDs into their product lines. Prices in 1,000 quantities will be $825 for 512GB, $425 for 256GB, $215 for 128GB, and $110 for 64GB. The drives will also be available for general consumers starting in March with similar pricing to the OEM versions.