That's the Renport Surf Router Pak $40/day. Renport has an office at the Sunsail/Mooring base. The only good thing I can say is it has unlimited data and they set it up for you. Other than that, it's crazy expensive.

As long as you're willing to do a little research and/or legwork you can save a lot of money especially if you go to the BVI regularly.

Just remember the Digicell and Lime offices are closed on Sundays. I went with an $89 unlocked ATT Unite Pro (aka, Netgear AirCard 781S), is has a large battery and easy user interface. Since it's unlocked you can put any provider's sim in it and I needed that as we sail in other areas.

If you know you'll be in the BVI I think getting the Digicel wifi router is a good way to go but there are many ways to skin the cat. I find having internet connectivity very useful on the boat just keep an eye on data usage if you're doing any streaming or skyping/facetime.