New HSD sleeve bearing 80mm x 25mm Fan The HSD 80mm x 25mm Fan mounts on standard 80mm fan holes. with 4-pin Molex connector. Product Features: 4 pins adapter Product Specifications: Dimension: 80X80X25 mm; Speed: 2500 rpm; Air Flow: 32.40 CFM; Noise Level: &lt;25 dBA; Voltage: 12 V