The medium speed 172 by 150 by 51 millimeter 115V AC axial fan is housed in die cast aluminum with thermoplastic blades. Containing long life dual ball bearings, the fan can run incessantly for 67,000 hours and be mounted in any direction. Has terminal connectors and may also be plugged into a normal outlet with a fan power cord, sold one by one. Cooltron fans are certified by CE, UL, TUV, and RoHS; and found in quite a lot of Samsung and Eaton servers and UPS systems.
The majority of fans larger than 120mm are designed to have a very high airflow. They’re loud and not really helpful for applications where noise is a factor. This model does not have a capacitor.
This model may also be found in noise tolerant applications such as server racks, LED signs, industrial machinery, commercial ventilation, and more.
PDF Specification Sheet
Other AC Infinity products to believe (Airflow CFM, Noise dBA): Copy and paste links to view
115V AC Cooling Fan 172mm x 150mm x 51mm High Speed (297 CFM, 60 dBA): http://www.amazon.com/gp/product/B007U01VMO
115V AC Cooling Fan 172mm x 150mm x 38mm High Speed (201 CFM, 60 dBA): http://www.amazon.com/gp/product/B005N4R5GA
115V AC Cooling Fan 172mm x 150mm x 55mm High Speed (298 CFM, 60 dBA): http://www.amazon.com/gp/product/B006FCXYBY
115V AC Cooltron High Speed Fan
Case Size: 172 x 150 x 51 mm ( 6.8 x 6 x 2 in )
Airflow: 183 CFM | Noise: 54 dBA | Speed: 3000 RPM | Power: 41 W | Bearings: Dual Ball
High Airflow: This model is designed to maximize airflow and may also be too loud for some applications.
A higher speed model with a capacitor may be to be had for a higher airflow, links may also be found in the product description.