Celsius Plus S28 Prisma CPU Cooler
The head unit of the S28 Prisma is built like a top hat, with a wider brim at the bottom, and a smaller section is rising in the middle. The top of the head unit is covered in a tinted glass panel with the Fractal logo to the right and is encircled with a ring of ARGB lighting from six LEDs. Unlike most other Asetek units, Fractal opted for a rubberized matte black finish!
Moving in a bit closer so we can make it our clearly, we find a notch in the side of the head unit. When you follow the groove to the glass top, you see PWM and AUTO. The top of the head unit can twist, allowing users to pick which control type is best for them.
On the edge of the head unit, we find a 3-pin plug, which would be at the bottom once installed in a chassis. The connection is for the ARGB cable located in the accessories, which needs the motherboard for ARGB signal to the cooler and is designed to work with various Sync methods from the different makers.
On the right side of the head unit, is where the fittings are. Starting at the top, we see the sleeve, captured with the plastic collars, which both have wires running threw them, and are connected to ninety-degree swivel fittings.
The underside of the head unit shows us that the hardware to mount it can be changed by twisting the bracket out of the tabs and sliding it off the unit. In the middle is the round copper cold plate, which has thermal paste pre-applied to save a step when it comes to installing the cooler. We do like the fact that we find no dirt or debris in this application of paste!
Removing the paste allows us to see the brushed appearance of the machining process, left in the copper. The cold plate is convex across its surface, but only slightly in the contact area, and bends more around the edge where the screws pass through it.
From the bend in the swivel fittings to where the tubes connect to the radiator is slightly less than sixteen inches in length, which is plenty for the average installation.
Between the rotary fittings found on the radiator, we have an exposed PCB with ARGB support at the back, and room for three PWM fans across the front. The hub allows the user to connect all of the bits to one area, which makes wire management of all of the cables a non-issue.
At the other end of the radiator, we see the standard Asetek sticker, which delivers the Fractal logo, model number, and serial number. More importantly, we see that this is the standard set of 27mm tick fins wrapped in a 30mm thick frame.
As we tend to see with an AIO, we find another dense radiator with the FPI count well into the twenties. Outside of that, everything is what you would expect from an Asetek cooler, even down to the rivets being exposed on the side covers and no custom nameplate.