From dankwiki

The Noctua-killer? Perhaps...using the highest setting (the third set of properties listed here) requires engaging the "Advanced" switch on the back of the fan. At that point, you really ought be comparing it to something like the NF-F12 iPPC-3000.

T30s can be daisy chained, and come with the necessary cabling to do so.

Product RPM Watts db(A) m³/h mm H₂O
PH-F120T30 1200/2000/3000 0.55/1.58/4.32 11.1/27.3/39.7 66.4/114/172 1.27/3.30/7.11