Portable hard drives are indispensable for one of the most critical parts of any photographer’s workflow, and one that often goes neglected – backing up. Your files are precious, after all, likely representing years of work and including many unrepeatable moments. If you’re a professional then having a robust backup system is essential, but even if you’re strictly an amateur photographer, a data crash that wipes out all your images at a stroke would be utterly heartbreaking. And it can happen.