Lian Li UNI Fan SL Flex 120MM RGB Reverse Blade Black 3 Fans With Controller Fan

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⚡ Engineering Highlights at a Glance:

• Reverse Blade Design: Designed for intake configurations while showing the fan’s front face, maintaining a clean, unified RGB aesthetic.
• Dual-Sided Infinity Mirror: Layered depth from every angle with independently controlled ARGB zones for a richer lighting presence.
• Daisy-Chain Design: Simplifies cable routing by connecting multiple fans together.
• FLEX Receiver: Integrates power, RPM reporting, fan-speed, and lighting control into one compact module.
• L-Wireless Ecosystem: Unified control of up to 10 channels of compatible Lian Li devices through L-Connect 3.
• Dual Control Modes: Choose between L-Connect 3 or motherboard PWM/5V 3-pin ARGB sync.
• FDB Bearing: Balances airflow, static pressure, and acoustics with reliable, quiet operation at up to 2000 RPM.
• 3-Year Warranty: Backed by a 3-year warranty on both fan and receiver for long-term reliability.

Reverse Blade vs Standard Blade

Reverse blade fans are designed for intake configurations where you want the fan’s front face (with its lighting and aesthetic) visible from inside the case. Standard blade fans push air through the back, making the rear visible. In a typical PC build, side-mounted fans on cases like the O11 Dynamic are intake, so reverse blade fans let you show the infinity mirror side while still pulling air into the case. Choose reverse blade when the visible side of your fan should be the intake side.

🔧 Control Modes and Setup

The UNI Fan SL Flex supports two control modes: L-Connect 3 via L-Wireless (2.4GHz) and motherboard sync via 4-pin PWM and 5V 3-pin ARGB cables. Use L-Connect 3 to access custom device naming, fan grouping, fan curves, and advanced lighting effects. When the wireless receiver is connected and bound in L-Connect 3, users can freely switch between motherboard sync and L-Wireless lighting control. Motherboard sync can be used without L-Connect 3 for a simpler setup.

📐 Fan Grouping and Expansion

Each FLEX Receiver supports up to 4 matching UNI Fan SL Flex fans for simple and organized fan group expansion. For optimal RPM accuracy, group fans with the same blade orientation on each receiver. The included L-Wireless Controller and FLEX Receiver manage power and control for the 3-pack. Daisy-chain the fans to reduce cable clutter, and use the included 1-to-3 PWM to SATA cable for power delivery.

For the cleanest build, daisy-chain the three fans together and connect them to the FLEX Receiver. Use the included 1-to-3 PWM to SATA cable for power delivery, and the 5V 3-pin ARGB cable for motherboard sync if you prefer not to use L-Connect 3. If you want advanced control, install L-Connect 3 and bind the L-Wireless Controller to access custom device naming, fan grouping, fan curves, and lighting effects. Reverse blade fans are ideal for side-mounted intake positions where the front face is visible—this lets you show the infinity mirror and ARGB zones while pulling air into the case. Group fans with the same blade orientation on each FLEX Receiver for optimal RPM accuracy. For quiet operation, set fan curves to keep speeds below 1500 RPM under typical loads, or use the 0 RPM mode for silent operation at low temperatures. The 3-year warranty on both fan and receiver provides long-term peace of mind.