If you thought DDR5 was already too expensive right now, Cooler Master and G.Skill have a surprise in store for you. The two manufacturers are partnering up to make "MasterDIMM" — a new line of DDR5 memory kits that come with active cooling and a promise of temperatures that are up to 15 degrees cooler than conventional RAM. These sticks feature a thick heatsink with a fan built-in to emulate a blower-style cooler you see in some GPUs. There are no pricing or availability details yet, but it's not hard to imagine these kits, made for "demanding next-gen systems," will be even pricier than regular DDR5.
MasterDIMM will be properly shown off at Computex 2026 in just a few days, so expect more information then. For now, we know that these are high-end UDIMMs (desktop) that will push the envelope for DDR5 RAM in terms of style. The design of these sticks is very classy, sporting a black and gold aesthetic with part of the copper heatsink visible on the front, along with the fan on the other end. Naturally, they're a little larger than regular DIMM's, so motherboard compatibility remains to be seen.
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There are two RGB strips running along the top, also flanked by gold accents, and the whole thing looks oddly similar to a fancy M.2 SSD. The RAM itself is made by G.Skill, while the heatsink is designed by Cooler Master. MasterDIMM will offer speeds up to 6,000 MT/s at CL26 latency with AMD EXPO, or up to 8.400 MT/s on Intel platforms via XMP 3.0. Capacities will scale up to 128GB at the top-end through 64GBx2 configs.
The companies claim the fan inside is whisper-quiet, delivering optimal cooling at just 35 decibels. That's the same noise level as a library. The heatsink and fan combo can drop temperatures by up to 15 degrees Celsius, which would be a remarkable improvement if proven true in testing. Keep in mind that DDR5 RAM, in general, is already rated for operation at up to 95°C, but it stays between 70-80°C in most cases.
Now, this is not the first time someone has put a massive cooler, or even two fans, on some RAM, but it's the most mainstream version of such a combination yet. Both G.Skill and Cooler Master are huge names in the PC hardware industry, so it'll be interesting to see how well this product does. Of course, that depends on pricing, and DDR5 prices are still out of control despite some semblance of the AI boom slowing down as of late.
More than a decade ago, Corsair tried to actively cool memory with its Vengeance Airflow modules, and vendors have tried to fit their DIMMs with creative heatsinks forever. Last year, we even tested a Silverstone AIO that could attach optional fans to itself to cool your memory and SSD.
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