CRONA SAn Alternative to ConventionWith the Low-key black back frame, Crona S features the indistinct RGB LED halo. By the design of multi-hole back frame, Crona S allows for the air exhaust acceleration.Crona S is the combination of Low-key design and high performanceImplicit RGB lightingCrona S, designed for users that want to own the RGB lighting without suffering from light pollution. By placing LED lighting in the middle of black frames, Crona S would be the best choice for reserved people like you.Controller on Hand, Lighting is PlannedWith the included Crona Controller and Remote, the Crona supports on the fly switching between up to 14 speed/color adjustable lighting effects. The Crona Controller supports both 12v and 5v Addressable inputs, making it compatible with almost all RGB enabled mainboards as well as a stand-alone RGB controller.Nullify Vibrations With Built In Acoustic AbsorbersIncluded with every Crona are four pre-installed integrated Acoustic Absorbers. These thick silicon pads form a buffer between the fan and heatsink body, nullifying unwanted vibration noise.Pleasing Your Ears With Acoustic EngineeringCrona 120 ARGB fans feature CRYORIG\'s HPLNTM ( High Precision Low Noise )bearing system, offering stable and precision rotation eliminating excess vibration and noise.Specification- Model: CRONA X- Dimension: L120 mm x W120 mm x H25.4 mm- Weight: 157.1 g- Rated Speed: 400 1700 RPM 10 %- Noise Level: 16.5 29.7 dBA- Air Flow: 60.6 CFM- Air Pressure: 2.65 mmH2O- Ampere: 0.15AContents:- CRONA 120 RGB X 3- Sleeve X 12- Intallation Screw S X 12- Intallation Screw L X 12- 5V RGB Cable X 1- 12V RGB Cable X 1- SATA Power Adapter X 1- Control Hub X 1- Remote Control X1