SUBZERO M.2 XLDigitalReviews.Net would like to welcome another new editor to our site. Daniel Mounnarath has been building and tinkering with Gaming PCs since knee high to a grasshopper, which is pretty much how long I have known him. He will be DRN’s go to when testing PC components. Welcome aboard!

Let’s see what he has to say about the GELID Solutions SubZero M.2 XL.


Over the last couple of years, it’s safe to say that M.2 SSD’s have taken over as the preferred form factor for those building a PC in the current generation. With motherboard manufactures for Intel and AMD now supporting the M.2 form factor in their entry level boards and small form factor builds becoming more mainstream the use of M.2 SSD’s are becoming the default option for both reliability and space saving potential.

Some (not all) motherboard manufacturers have started also integrated cooling of their M.2 slot with their chipset cooling solution in their higher-end boards with some SSD vendors also shipping their M.2 SSD’s with their own factory heatsinks. But are they necessary and are the aftermarket solutions worth it?


GESZM2The product

The product stepping up to the test is the GELID Solutions SubZero M.2 XL. The company claims that “It helps to improve performance, increase durability and enhance data integrity of the solid-state drives” and “…maintain significantly lowered operating temperatures for memory ICs and other electronic components of the M.2 SSD”




The GELID Solutions SubZero M.2 XL comes packaged in a simple cardboard box with an aluminium head spreader and 2 strips of thermal tape in 1.0mm thickness – for SSD’s with non uniform and varying heights of VNAND and Controllers and a 0.5mm one – for ones where the height of all the components are the same height across the length of the SSD. It also comes with 3 rubber O-Rings that are used to fit around the length of the SSD and heat spreader to hold it all together.


First thoughts

The aluminium heat spreader has a nice bright accent which can add a decorative touch to an otherwise boring looking SSD, it seems to be fairly thin with a shallow fin array which makes me wonder how affective this will be at dissipating heat with such minimal surface area. However, for the most part it does appear to keep a low profile. Another thing I did find strange was the overall length of the heat spreader doesn’t seem to align with standard M.2 SSD sizes as it far longer. However, I attributed this to the fact that it’s because we were provided with a XL size for type 22110 server/Enterprise machines SSD’s as opposed ones for use in consumer PC’s. For the purpose of testing performance, the fitment in the system is irrelevant an the additional surface area is negligible to the final results.



The instructions that came in the box were clear and for the well-seasoned PC builder would be unnecessary as it was fairly simple to put together.



Test System

Test system was assembled on an open-air Test Bench with no active cooling using the following components:
• CPU: i5 7500 @ 3.40ghz, Stock Intel Cooler
• Graphics: Intel HD Graphics 630 (Integrated)
• Motherboard: ASUS Prime B250M-PLUS
• Memory: G.Skill Trident Z RGB 16GB DDR4
• PSU: Corsair AX860 Platinum
• SSD: Toshiba THNSNJ128G8NU 128GB SATA (Good Health Status)
• OS: Windows 10 x64, Build 1909 (Clean Install)


Test Methodology

Testing was carried out using AIDA 64’s sensor logging and tracking the temperature in 1-minute intervals while testing SSD the speeds using CrystalDiskMark with the following parameters.
• Passes: 9
• Files Size: 1GiB
• Drive: C:\

This was done for the SSD with without the heat spreader and with the heat spreader and a comparison of thermals and performance was made. The questions we are interested in getting an answer to are:
• Does a heat spreader lower the temperatures?
• Does it increase performance?
Before each test was run the SSD was left idle to get a baseline of the lowest recorded temperature and temperature readers were recorded after the test to see how long before the SSD returned to it’s lowest operating temperature.


The Results (Click to Enlarge)
• Data Table








Read Speeds




Write Speeds

So is it worth it?

The benefits of the GELID Solutions SubZero M.2 XL is noticeable from the thermals perspective offering a reduction of up to 10 degrees cooler operation during high workloads. However, this lower operating temperature does not appear to have changed or improved the performance of the SSD with Read and Write speeds remaining almost the same with and without the Heat Spreader installed. During testing we found no instances of thermal throttling suggesting that the additional thermal headroom wasn’t necessary and in a real-world application, any improvements of this margin would be negligible and provide no difference in experience.

At $10 USD each, while not expensive it is something that isn’t essential however there might be use cases where higher performing SSD’s that do run hotter may benefit from the drop in operating temperatures or in instances where your case/motherboard does not have adequate active cooling to keep temperatures within safe operational levels.  It does come in Red or Black.

DRN would like to thank GELID Solutions for their on-going support.