Thermalright TY-140 Computer case Fan

140 mm, 900-1300 Rpm, 17-21 dB, 28.3-74 Cfm, 140 g - PWM fan, provides simple and easy adjustment of fan speed with the latest ETC IC.
- Seven Silent Torpedo Blades - “submerges”, gives most quiet and efficient airflow
- Enhanced Hyper-Flow Bearing (EHFB) - to ensure consistent and stable rpm, prolonged lifetime of usage.
- Aerodynamic body–Less friction around the edges and give more centered and concentrated airflow.
- 12 cm mounting hole–allows installation on the 12 cm dimension, so will be compatible with most coolers without having the need to buy extra kit for 14cm fan.

The TY-140 can be pluged into the 3 pin; you can tell from the jack, there is fool-proof design on the jack so wrong installation of the pins are avoided.
This fan is designed with PWM function, so full speed of 1300rpm will apply when pluged into 3 pins instead of 4 pins .