Alphacool NexXxos ST30 360 Radiator Review

Technical specifications as listed by Alphacool:

Technical specifications:

Material internal: “Mostly copper”

Material casing: Side panels steel, threads brass, copper chambers

Colour: Black

Dimensions (LxWxH): 400x124x30mm

Connection threads: 2×1/4“

Mounting thread size: M3

Pressure tested: 1.5bar

Weight: 0,970kg

Dimensions Measured on the radiator tested (retail unit):

A variance of 5mm is noticed between my measurements and the length listed in the specs.

I double checked my measurement and again I measured 395mm, the noticed that the tech drawing has an overall length of 397mm, so who knows what Alphacool are measuring.

Radiator Core Dimensions:

The core is a single layer of 15mm x 2mm copper tubes in a standard U-Pattern flow path. The single louvered fins were laid out quite unevenly between the rows tubes and have an averaged count of 14 FPI (Fins Per Inch). The following pic however shows about 16 FPI.

Not a great pic I’ll admit as the ruler is out of focus and not at the start of a fin, but you get the picture.

Finish and Features

The ST30 has a satin black finish, which is in between a full gloss and matte black. The finish is nice and smooth apart from one small blemish on the return end tank, which was a piece of grit or something under the paint.

The ST30 comes equipped with just the 2 ports, inlet and outlet, so no opportunities for drain/fill ports. Some attempt has been made to keep paint out of the G1/4 threads during the paint process.

There is no bleeder/fill port on the return tank end either.

There are screw protector plates fitted under the M3 threads for case installation and fan attachment. As the mounting holes are located directly over the top of the outside tubes, theses plates would save the rad from almost certain unrepairable damage if the wrong length screws were used.

So we have a no frills, slim rad which has a thin core (obviously), but I mention it because it is the second thinnest core of all the rads tested to date. With the medium density fin structure on it’s slim core I can’t help but think that the ST30 doesn’t have much potetntial in the heat dissipation department, but I’ve been wrong before so let’s see how it performs.