We have testing data using the 277 where an unmodified macbookpro with VHT80 supported over 300Mbps of TCP thorughput at 600m. However, using VHT80 is not really tenable. However, at 30m, it should be at near MAX speed for the band/channel-width. 100m with the D100 should generate at least 100Mbps for HT40, if not more. The 'it depends' comes in to play as noise floor, interference, device type and orientation (going through bodies, is it overhead, any foliage, etc all come in to play).