Another handy (and cheaper!) backup device is the Sanho HyperDrive Colorspace UDMA. They come in capacities of 120GB to 640GB (the 640 you have to buy from the Hyperstore). Neat thing is it does much of what the Nexto does and has a feature so you can write scripts on the controller which is good for telling the unit how to separate your RAW files from everything else. The drawback is it doesn’t have the extended range of card interfaces as the Nexto and you can only backup about 250GB’s per battery charge.
On the otherhand, if you’re not working with RED, P2 or SxS anyway that won’t be an issue. Take a look:
http://www.bhphotovideo.com/c/product/594352-REG/Sanho_SAHDCSUDMA500_HyperDrive_COLORSPACE_UDMA.html#features
