The drive whose shortcut is listed below "WD 2TB My Passport Wireless Portable External Hard Drive" says that it will back up files straight from the SD card. It also has wireless capability. Supposedly it has built in wi-fi.
- One wireless storage solution to connect with multiple devices
- Wirelessly connect with up to 8 devices at a time
- Back up or transfer photos and videos from your SD card
- Stay mobile longer with up to 6 hours of video streaming and 20 hours of standby
- No Internet connection needed to enjoy your photos, videos and music
https://www.amazon.com/Passport-Wireless-Portable-External-Drive/dp/B00M9B44...sport+wireless