• 1x (PWR) 4-Pin Female Molex (this is only bad in it)
• 6x (F1-F6) Standard 4-pin PWM Fan Header
• 6x (L1-L6) D-RGB Header 3-Pin 5V Digital LED Header (Pinout: +5V, D, Blocked, Ground)
• 3x (T1-T3) Temperature Probe Headers
• 1x (FLO) Flow Meter Connection
• 1x (LVL) Coolant Level Indicator
• 1x USB 2.0 Data Header
• 1x (EXT) Data Header for Daisy Chain
• Power Output for Fans: 20W per header
• Power Output for LEDs: 8W per header
• 55 EUR

Software can do

• Fan Speed PWM Curve Control
• PUMP Speed PWM Curve Control
• Addressable D-RGB Lighting Control
• Physical Thermal-Probe Readouts
• Hardware Temperature Readouts
• Manual Air Bleeding Activation
• Safety Coolant-Level Sensor
• Coolant Flow Readout
• Coolant Replacement Reminder

https://www.ekwb.com/news/keep-your-pc-healthy-with-ek-loop-connect/