Delinx 12V PC Fan Speed Controller, AC Plug with 4X 4-Pin Splitter Cable

• ✅ 3‑12V Wide Voltage Adjustable Output This variable power adapter delivers DC 3V‑12V continuously adjustable output with max 3A 36W power, perfectly regulating speed, airflow/water flow, noise level and power consumption of your 12V cooling fans and water pumps. Compatible with 2‑pin, 3‑pin, 4‑pin fans and DC5521 port devices for flexible DIY cooling control.
• ✅ 35cm 4‑Pin Fan Splitter Cable Included Comes with a 35cm DC5521 female to dual 4‑pin fan splitter cable, supporting simultaneous power supply and speed adjustment for multiple cooling fans or pumps. Ideal for PC cases, NAS, servers, AV cabinets and water‑cooling systems, expanding your cooling setup easily.
• ✅ Comprehensive Safety Protection & Premium Build Built‑in IC smart chip and thickened pure copper wire, with over‑charge, over‑current, over‑voltage, short‑circuit and temperature protection. Fireproof housing ensures safe long‑term use; the adjustable knob features an ON‑OFF switch, plus an indicator light with brightness variation to show working status intuitively.
• ✅ Universal Input & Widely Compatible Port AC 100‑240V wide‑range input supports global power grids; standard DC 5.5×2.5mm plug (compatible with 5.5×2.1mm) matches most fan and pump power ports. Perfect for DIY electronic projects, router cooling, cabinet ventilation, water‑cooling equipment and more 12V low‑voltage devices.
• ✅ Versatile Application for All Cooling Scenarios Achieve perfect balance of noise, power and temperature for your devices. Widely used for PC gaming cases, home NAS storage, network servers, AV audio‑visual cabinets, water‑cooling systems, DIY electronics, routers and small industrial equipment cooling.

3‑12V Adjustable 36W Fan & Water Pump Power Supply with Speed Control

Our 3‑12V adjustable variable voltage power adapter is a professional cooling speed regulator, specially designed for 12V cooling fans, water pumps and low‑voltage DIY electronic devices, bringing you customized cooling experience with balanced noise, airflow, power and temperature.

Key Features Precise Voltage Speed Adjustment Rotatable control knob supports continuous DC 3V‑12V output adjustment (max 3A/36W), freely controlling fan speed and pump flow rate. Lower voltage for quiet low‑speed operation, higher voltage for strong high‑speed heat dissipation, meeting different cooling demands.

Complete Accessories for Multi‑Device Connection Equipped with a 35cm DC5521 to dual 4‑pin fan splitter cable, it can drive multiple 2‑pin, 3‑pin, 4‑pin fans or water pumps at the same time. Standard DC 5.5×2.5mm plug is compatible with 5.5×2.1mm ports, widely matching mainstream fan and pump power interfaces.

Safe & Stable Operation for Long‑Term Use Adopts high‑quality IC smart chip, thick pure copper wire and fireproof outer shell. Built‑in multi‑protection system including over‑charge, over‑current, over‑voltage, short‑circuit and temperature protection to avoid device damage. The integrated ON‑OFF switch and brightness‑variable indicator light bring convenient operation and real‑time status monitoring.

Wide Compatibility & Universal Input AC 100‑240V wide‑range input adapts to global household power grids. Perfect for PC gaming cases, home NAS storage systems, network servers, AV audio‑visual cabinets, water‑cooling equipment, routers, small industrial cabinets and various DIY electronic cooling projects. Whether you need quiet low‑speed heat dissipation for home devices or high‑power cooling for high‑load equipment, this adjustable power supply will be your ideal cooling control solution.

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