Alphacool NexXxoS XT45 Full Copper Dual-Flow 360mm Radiator (14389)

The Alphacool NexXxoS XT45 Full Copper Dual-Flow 360mm Radiator is a 360 mm radiator for three 120 mm fans, 45 mm thick, divided in the middle so it can run two separate loops. It measures 415 x 125 x 45 mm and has 12 G1/4 connections and M3 fan threads.

Properties

Fan slots

120 mm fan size, 3 one-sided / 6 double-sided

Size (L x W x H)

415 x 125 x 45 mm

Thickness

45 mm (Alphacool's 39 - 49mm class)

Threads

12x G1/4, thread size fan mounting M3

Material

Copper cooling fins, cooling channels and prechambers, steel outer housing

Fins per inch

12

Two loops through one radiator

According to Alphacool, its Dual-Flow radiators were developed specifically for use in servers. It calls the ability to run two separate loops through one radiator unique. In a single loop there are also advantages to using them, as you can split the cooling surface and use it directly behind hotspots.

What does dual flow mean?

The water flow in a classic radiator is in a U-shape: water is introduced on one side and runs once through half of the radiator before turning around. Running back through the other half, it reaches an outlet that is on the same side as the inlet. In an X-Flow radiator the water flows once from left to right completely through the radiator, so the inlet and outlet are on opposite sides. With the Dual-Flow Radiator the water flows from one side to the other just like the X-Flow. However, this one is divided in the middle. You could also say it is nothing more than two small X-Flow Radiators in one.

What are the advantages?

Space is extremely limited in most server racks, and being able to do fancy loops is not usually an option. Due to this you can utilize the radiator to simplify the loop and reduce the amount of tubing needed. Alphacool reports that in some test scenarios it has even seen an increase in performance from the loop due to this method too.

Many connection and mounting options

The radiator offers 3 connection options at each input and output, 12x G1/4 connections in total. Versatile mounting requirements can thus be met. It comes with all screws for mounting inside a case or server rack and for mounting the fans, so additional screws are usually not needed. A protective plate also sits between the mounting holes and the cooling fins. Its job is to prevent overly long screws from damaging the cooling fins and cooling channels. The max working temperature is 60 °C.

Choice of materials

Alphacool says it is the only manufacturer in the world to use only copper in all water-carrying parts in the radiator. Both the pre-chambers and the cooling channels are made of copper, and the cooling fins are also made of it. Brass is the material of the connection threads. Only the side parts to protect the cooling fins are made of sheet steel.

What the loop needs

Each input and output in use takes one of our fittings, and the 8 screw plugs in the box close the other connections. The radiator takes three 120 mm fans. The box also holds 12 screws each in M3x8, M3x30 and M3x45 and a hexagon socket.

We also have the next thickness up in this design, the NexXxoS UT60 Full Copper Dual-Flow 360mm Radiator.

Technical data

Notes

• Use the radiator only with clear, transparent water cooling fluids. Alphacool warns that the particles and additives in pastel liquids can clog and permanently damage water cooling products such as radiators, pumps, coolers and hoses. It adds that this can void the manufacturer's warranty as well.

In the box

• 1x Radiator
• 12x M3x8 screw
• 12x M3x30 screw
• 12x M3x45 screw
• 8x screw plug
• 1x hexagon socket

Download Alphacool's data sheet (Datasheet), a PDF. Its 3D model of the radiator is an STP file, and the 3D viewer shows it from every side.