With a thickness of only 30mm, the EK-Quantum S Series Surface radiators are ideal for space-constrained cases. Despite the reduced thickness, they deliver exceptional performance at very low and medium fan speeds. A total of 16 copper 2mm wide tubes across the entire length of the radiator assure optimal coolant flow putting no stress on your cooling loop. High-grade non-louvered copper fins with 20 FPI density provide the best balance between thermal transfer and air resistance for optimal performance even at low-speed fan operation. A Push/Pull setup on an S Series EK-Quantum Surface radiator is not something EK would recommend since it will not bring a proportional performance increase. If more cooling power is needed, adding additional radiators is the way to go. Technical and Material Specifications: - High-grade 99.9% copper fins - Copper H90 tubing - Brass H62 end tank chambers - Stainless Steel side plates - Extruded Aluminum Silver anodized end piece covers - Brass nickel-plated extenders and plugs Dimensions: 285 x 130 x 30mm (L x W x H) Weight: 0.73kg FPI: 20 Port threads: 2x G1/4" Fan compatibility: 120x120x25mm fan Pressure tested: 1bar Enclosed: - EK-Quantum Surface S series radiator - 8x Phillips Slotted M4x30mm for 25mm thick fans - 8x Phillips Slotted M4x5mm for mounting the radiator directly to the case - 6mm steel Allen (Hex) key - 9mm steel Allen (Hex) key