Excellent 140mm PWM fans from Lian Li. The UNI SL140 fans have integrated addressable RGB LEDs and outstanding performance. The dual pack offers users even better value for money.The features of the Lian Li UNI FAN SL140 2-pack at a glance:- 32 digitally addressable RGB LEDs per fan- Software control for speed and illumination options- Max. 1500 rpm speed at 30 dB (A)- 70.5 CFM max. Airflow & 1.65 mm max. H2O air pressure- Vibration reduction materialThe features of the Lian Li UNI FAN SL140 2-pack in detailThe Lian Li UNI FAN SL140 features a clever and unique design, with the fans including contact pins and being connected via a simple plug-in system. Multiple fans no longer have to be connected individually, which saves a lot of time and prevents cable clutter.Additionally a fluid dynamic ball bearings ensure smooth operation and improve durability. Since friction is reduced, the fans can run at higher speeds without greater energy consumption. The UNI SL140 fans have a maximum full speed of 1500 rpm with up to 30 dB (A) under full load. They also run quiet with 70.5 CFM airflow and 1.65 mm H2O static pressure at full speedEach fan includes 32 digitally addressable RGB LEDs. As well as that an RGB and fan controller board is included. This is operated via software and enables users to set both fan speed and illumination effects.Specification:- Dimensions (per fan): 140 x 25 x 140 mm (W x H x D)- Material: plastic, aluminum- Colour: WhiteFans:- Bearing: fluid dynamic ball bearing- Speed: 500 - 1500 rpm- Volume: Max 30 dB (A)- Airflow: max. 70.5 CFM Static pressure: max. 1.65mm H2O- Voltage: 12 VLighting:- Type: digitally addressable RGB- Number: 32 LEDs per fan- Connection: 3-pin RGB (5VDG, 5V)Contents:2 x Fans 1 x Controller