Randomness from a Quantum source?


Please have a look at this thing:

http://www.idquantique.com/products/quantis.htm

It makes a claim of 4 or 16 Mbits per second of random data based a quantum process. I don't dispute the method but is that kind of data rate feasible / compatible with the concept of measuring one photon at a time?

TIA for your thoughts.
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