If you're looking for alternative backup solutions, consider:

We do not provide or promote any illegal or unauthorized software activations or serial numbers. The information provided in this guide is for educational purposes only. Users are advised to obtain software licenses through official channels to ensure compliance with software vendor terms and conditions.

Brands such as Western Digital (WD Edition) and Crucial offer free "Editions" that do not always require a manual serial number; they automatically activate once they detect the supported hardware.