http://www.evercool.com.tw/products/sb_a.htm

Features:
• Exhaust the harmful hot air from inside the case
• High air flow, high static pressure
• Special design blades structure heat dissipation 
  5 times than other competitons
• Easy installation, take up only one PIC or ISA slot

Specifications:

Overall Dimension: 100 x 90 x 22 mm
Base Material :       PBT
Bearing Type :       SA/CA/BA/ELA
Speed :                 2400 RPM
Noise Level :