EK-Quantum Surface X360M - Black is a massive 360 mm water radiator from EKWB, aimed at serious custom loop builds and high-end cooling. With a thickness of 58 mm and a combined material of aluminum and brass, this radiator is designed for stable heat exchange and a solid construction. The standard G1/4" threads ensure wide compatibility with fittings and the other components in the water loop. The black color and clean design make it easy to fit into a visually organized build.

What you get: a large area for heat dissipation within 405 x 130 x 58 mm, which allows you to keep components cooler at lower noise levels if you set the fans reasonably. The 58 mm thickness is an advantage if you have airflow and enough space in the case – the larger volume and area mean more efficient exchange at the same airflow. With the G1/4" thread, you can easily combine this radiator with pumps, reservoirs, and blocks in almost any custom loop. The kit includes all essential screws and tools, so you can mount it directly to the case and attach standard 25 mm fans without looking for additional small parts.

Radiator with a length of 360 mm, suitable for three 120 mm fans in a row for serious water cooling.
Combination of aluminum and brass in the construction for good strength and durability during long-term use.
Standard G1/4" thread, which makes the radiator compatible with mass-market fittings and the other elements of a custom loop.
Dimensions of 405 x 130 x 58 mm, which you should keep in mind when planning space in the case, especially for top or front mounting.
Serious thickness of 58 mm, providing greater volume and area for more effective heat dissipation.
The kit includes 12x M4x30 mm screws for 25 mm fans and 12x M4x5 mm for direct mounting to the case, so you can start assembling immediately.
Included are 6 mm and 9 mm steel Allen tools for convenient tightening and installation without the need for additional wrenches.
Classic black color, which fits most builds – from minimalist to fully RGB configurations.

It is suitable if you are aiming for more serious water cooling in a mid- to high-end system and your case has real space for a thick 58 mm radiator. A good choice for users who plan a custom loop with several components in the chain and care about lower temperatures at moderate fan speeds. It is not suitable if you use a more compact case without clearance for thicker radiators or are looking for a very basic water solution.

The combination of 360 mm format, 58 mm thickness, and a full set of mounting elements makes the EK-Quantum Surface X360M - Black a practical choice for a serious custom loop, without unnecessary complications regarding compatibility and installation.