Bykski 9 Blade High Volume 120mm PWM - 5V Addressable RGB(RBW) LED Fan - 2000 RPM / 70.33 CFM / 37.7 dBA (CF-RBW2000EX-X)

The Bykski 9-Blade High Volume 120mm Fan is a PWM case and radiator fan with 5V addressable RGB lighting, built around a dual ball bearing and a high-precision bearing shaft core. Nine blades and a 2000 RPM top speed give 70.33 CFM at 37.7 dBA. PWM control means the motherboard scales the fan to actual load, so it spends most of its time well below both of those figures and only reaches full speed when the system is working. The blade geometry is shaped to move air through resistance — radiator fin stacks, dense heat sinks, filtered intakes — rather than only across open space inside a case. Dual ball bearings are the reason this fan is rated for sustained running. Sleeve bearings wear faster when they run continuously or mount horizontally; ball bearings trade a small amount of noise for a longer service life, which is the right trade in a system that stays on. Lighting is 5V addressable RGB (RBW) on a standard 3-pin ARGB header, so each LED is controlled individually by your motherboard’s own lighting software. No proprietary controller is used, and none is included. Specifications Size: 120mm × 120mm × 26mm Speed: 2000 RPM, PWM controlled Airflow: 70.33 CFM Noise: 37.7 dBA at full speed Bearing: dual ball bearing, high-precision shaft core Blades: 9 Fan power: 12V, 2.4W Fan connector: 4-pin PWM, with FG tachometer signal — the motherboard reads actual fan RPM Lighting: 5V addressable RGB (RBW), 3-pin header Compatibility Standard 120mm mounting — 120mm case fan positions and 120mm series radiators 26mm thick, not the usual 25mm. Check clearance in slim builds and in sandwich-mount radiator positions Requires a 4-pin PWM fan header for speed control and RPM reporting Requires a 5V 3-pin addressable RGB (ARGB) header for lighting This fan does not connect to a 12V 4-pin RGB header. The connectors look similar and the voltage is not. The LED plug is keyed with a blanked position to prevent it, but forcing it will destroy the LEDs The fan will run normally on PWM alone if no ARGB header is available; only the lighting is lost No ARGB pass-through — each fan needs its own header position or a separate splitter or hub Parts Included 1 × Bykski 9-Blade High Volume 120mm PWM 5V Addressable RGB (RBW) LED Fan No ARGB controller, splitter, or fan hub is included Warnings Confirm your motherboard has both a 4-pin PWM fan header and a 5V 3-pin addressable RGB header before ordering. The manufacturer reserves the right to alter the design to improve performance, so the delivered item may not match the pictured item exactly. This product is for self-installation. The manufacturer is not liable for damage resulting from misuse, including improper installation, operation outside specification, or connection to an incompatible header. By using this product you accept those risks.