Regardless of the wire lead area on the fan... the Panaflos do not support RPM monitoring.
Like Sundog said, if you are planning on plugging a 80MM+ fan or 60MM 7K+ screamer... be sure that 1) it supports fan monitoring 2) you buy it with a splitter/RPM cable (3 pin hooks into motherboard and 4 pin molex plugs into PSU). If you don't do it you run the risk of burning out your fan header or your motherboard.