Hi, I need to back up photos from SD cards to an external drive while traveling. I won't have a computer / laptop with me so I'm looking for a hard drive with an SD card reader. So far the only reasonably priced thing I've seen is the WD My Passport Pro for around $150. It gets some wonky reviews so I'm not sure I want to trust it in the field. Does anyone know of any other options or is this pretty much it? Thanks!