Fan Size: 40 x 40 x 20mm RPM: 4500 RPM Noise Level: 21 dBA LED: Blue Dimensions: 197 x 148.6 x 42.5mm Features: Smart design for various free cooling playing - HDD Case cooling Ultimate integration of DC fans, aluminum front panel and heat sink cover (SHF1 Ultra) for maximum cooling performance Multi-functional bracket design for extra fan / HDD mounting Blue LED DC fan built-in Anti-shock protection design to reduce hard drive noise and vibration Fits any 5.25" drive bay and any brand name hard drive Application for 3.5" HDD of IDE, SCSI, SATA, SAS interface Available for DIY applications, RAID towers, severs and industrial PCs Package Contents: HDD Cooler Power Cable Thermal Pad Bracket Screws