Lexar has introduced a new pair of USB flash drives, the Echo SE and ZE. Both offer a backup solution that activates when the drives are connected to a computer. The software is compatible with both PC as well as Mac systems, and automatically encrypts data (128-bit AES) and backs up "any files in use".

Capable of read and write speeds of 28MB/s and 10MB/s, the Echo SE will be available in 16GB, 32GB, and 64GB capacities, while the ZE is more compact in 8GB, 16GB, and 32GB sizes. The former will ship with a five-year warranty, and the latter with a two-year warranty.

Both drives are expected to land in February, but an exact date and price have not been announced.