Feature: 1. Ultimate Performance: The 45mm cooling fan provides ultimate cooling performance through high airflow and low noise fans 2. Protection Function: The screw protection plate prevents the screws from being too long or too tight, thereby damaging the cooling fan 3. Size: Port thread 2 x G1 / 4in, product size 272mm x 120mm x 45mm, appropriate size 4. Scope of Application: Suitable for computer CPU, industrial variable frequency drive, VGA water cooling, conditioning evaporator 5. High Efficiency: Use black oxide paint to improve thermal efficiency without weak welds or glue Specification: Item Type: Water Cooling Radiator Product Model: SR-240SL Material: Aluminum Alloy Product Size: Approx. 272mm x 120mm x 45mm / 11 x 4.7 x 1.8in Adaptive Fan: 2 x 120mm Fan Product Hole Position: G1 / 4in Product Capacity: About 300ml (Measured Manually with Slight Error). Package List: 1 x Water Cooling Radiator16 x Screw Note: Just below the screw hole is the water channel pipe, so before use, be sure to calculate whether to use long screws or short screws (long screws install the fan and short screws fix it), which will top the water channel