• This is the infamous 802.11n Sarbanes-Oxley mandated $1.99 802.11n enabler.
• These benchmarks are crude, but should give you a rough idea. All benchmarks were performed with a MacBook Pro 15" Core 2 Duo, a 'snow' 802.11g Airport Extreme Base Station, and the new 802.11n Airport Extreme Base Station.

• We ran all the benchmarks at least three times, and we're presenting you with average numbers. Your mileage will vary significantly, particularly with distance-- our base stations were inside, but the building wasn't big enough so we had to go outside to get 300 feet away.
• This graph shows transfer speeds at 5, 100, and 300 feet for both base stations. The graph is not linear or particularly to scale.
• The G signal doesn't work at all at 300 feet.

• We transferred two 35MB quicktime files (70 MB total). The first location was 5 feet from the base station. With the G base station, we had a reported comm quality of 56, and with the N base station the commQuality was 76. To get the commQuality, run the command `/System/Library/PrivateFrameworks/ Apple80211.framework/Versions/Current/ Resources/airport -I`.
• At 5 feet, N was giving me a whopping 9 MB/s! (It averaged at 7.8 MB/s.) I'm accustomed to keeping an ethernet cable at my desk to plug in when I need to make large transfers. With 802.11n, I'll be able to get rid of the extra cable.
• At 300 feet (with a building in the way), we were still getting 500 KB/s. We got tired of walking and stopped. I suspect you could still get signal at twice that.