In the market for an external USB 3.1 SSD? Those crazy crustaceans over at Mad Shrimps had a lot of nice things to say about the Silicon Power Bolt B80 they just reviewed.
It comes with military-grade shockproof protection, but also rubber covers/gaskets in order to prevent water and dust penetration. For signaling data transfer activity, the product is provided with a white LED and its modular design along with the easy disassembly procedure does allow the user to replace the mSATA SSD with any other model/capacity.