Heatsink/Radiator EK Water Blocks EK-Quantum Surface S360 Black 405x130x30mm

The EK-Quantum Surface S360 Black is a high-performance 30mm-thick heatsink/radiator designed for liquid cooling systems in space-constrained PC cases. Measuring 405x130x30mm, this Surface S series radiator combines a compact profile with a dense thermal core: 16 copper tubes and high-grade non-louvered copper fins at 20 FPI deliver balanced thermal transfer and low air resistance. The radiator features extruded aluminum end caps, stainless-steel side plates with semi-gloss black paint, and a matte black coating on the fins for improved thermal conductivity and a consistent appearance. It is compatible with standard 120mm fans (25mm thickness) and uses supplied M4 screws for mounting.

Advantages

The slim 30mm thickness enables installation in cases with limited radiator clearance while still providing efficient cooling at low to medium fan speeds. The optimized core and fin structure improve core-to-core performance by up to 20% compared to the previous generation, offering better thermal performance without increasing airflow restriction. Low internal flow restriction minimizes stress on pumps and allows multiple radiators to be used on a single pump. The design is modular and easy to disassemble, facilitating DIY modification and integration into custom loops, and the EK-Matrix7 compatibility ensures consistent port spacing and tidy tube runs.

Suitable for

• Compact and mid-tower PC builds where radiator thickness must be minimized
• Custom liquid cooling loops requiring low flow restriction and multi-radiator setups
• Systems that prioritize quiet operation with low to medium fan speeds
• Modding projects that need easy disassembly and consistent aesthetics

Key specifications

• Dimensions: 405 x 130 x 30 mm
• Tube count and width: 16 copper tubes, 2 mm wide each
• Fin type and density: non-louvered copper fins, 20 FPI
• End caps: extruded aluminum
• Side plates: stainless steel with semi-gloss black paint
• Fan compatibility: supports standard 120 mm fans with 25 mm thickness
• Mounting screws: supplied M4 Philips round-headed screws
• Core characteristics: low coolant flow restriction, modular core design

How to use

Mount the EK-Quantum Surface S360 in a location that provides sufficient airflow and clearance for its 30mm thickness. Install standard 120 mm fans (25 mm thick) in a push or pull configuration using the supplied M4 screws, taking care not to overtighten. Connect the radiator to your custom loop using appropriately sized fittings and tubing, ensuring leak-free seals. When integrating multiple radiators, route tubing to minimize sharp bends and maintain pump efficiency; the radiator’s low flow restriction allows use with common D5 or DDC pumps. For modding or repainting, the modular construction permits disassembly following manufacturer guidance.

Recommendations

Use fans optimized for low-noise, sealed-edge frames for best thermal and acoustic balance. Avoid attempting push/pull configurations expecting proportional gains; instead, add additional radiators if more cooling capacity is required. When replacing or sourcing screws, use M4 standardized screws and follow the supplied screw length recommendations to prevent contact with internal fins. For tidy loops, pair the radiator with other EK-Matrix7 compatible components to simplify port alignment and tubing runs.