Dimension of outer the frame is 120mm (L) x 120mm (W) x 38mm (H) / The size of fan in inch is 4.72 in (L) x 4.72 in (W) x 1.5 in (H); The center to center distance beween the mountiong holes is 105mm/ 4.13 in. ^^ Operating Voltage Range 5.5V to 13.8V. (overtake to 13.8V, it can also work. but not safe, and seriously affects lifespan of fan. )
^^ High Speed: This model is designed to maximize airflow and can be too loud for some applications.
^^ Speed: 4500RPM;
Air flow: 179.2CFM;
Noise: 54.2 dBA;
Bearing type: Dual Ball Bearing ^^ Please Comfirm the Fan Size, Voltage, Connector and other parameters before purchase