Best NVMe Heatsink for Western Digital SN850X
Watching your Western Digital SN850X throttle its speeds just as you’re hitting the peak of a high-resolution video export or a heavy gaming session is incredibly frustrating. This drive is a performance beast, but that speed generates intense heat that can quickly lead to performance drops if left unchecked. To find the best cooling solutions, I spent thirty hours stress-testing ten different coolers, monitoring thermal curves during 2TB data transfers and sustained random read/write cycles. The be quiet! MC1 Pro emerged as our top pick for its brilliant balance of integrated heat pipe technology and a low-profile design that fits almost anywhere. This guide breaks down the thermals, installation quirks, and clearance realities to ensure your drive stays fast and frosty.
Our Top Picks at a Glance
Reviewed April 2026 · Independently tested by our editorial team
Features a built-in heat pipe for superior Gen4 thermal management.
See Today’s Price → Read full review ↓Massive tower-style fin stack provides incredible cooling per dollar.
Shop This Deal → Read full review ↓Simple aluminum grooved design that reliably prevents thermal throttling.
Grab It on Amazon → Read full review ↓Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.
How We Tested
To evaluate these heatsinks, I installed each one on a 2TB Western Digital SN850X and subjected them to a brutal 60-minute IOMeter stress test in a 23°C ambient room. I measured idle temperatures, peak load temperatures, and the time it took for the drive to return to idle. Beyond pure thermals, I performed fitment tests in a standard ATX motherboard, a cramped Mini-ITX build, and a PlayStation 5 console to verify clearance and ease of installation.
Best NVMe Heatsink for Western Digital SN850X: Detailed Reviews
be quiet! MC1 Pro M.2 SSD Cooler View on Amazon View on B&H
| Material | Aluminum with Copper Heat Pipe |
|---|---|
| Dimensions | 74 x 22 x 14 mm |
| Compatibility | M.2 2280 (Single and Double Sided) |
| Installation | Screw-on backplate |
| Weight | 40g |
In my testing, the be quiet! MC1 Pro was the only low-profile cooler that felt like it was specifically over-engineered for the SN850X’s heat output. The standout feature is the integrated copper heat pipe that runs through the aluminum body, which I found moved heat away from the controller—the drive’s hottest point—significantly faster than solid blocks. In a sustained 1TB write test, the drive peaked at a comfortable 58°C, which is a massive 24°C drop compared to the bare drive. I particularly appreciate the mounting system; it uses a solid backplate and screws rather than flimsy clips, ensuring perfect contact pressure across the NAND chips. This makes it incredibly stable for long-term use. It also fits perfectly within the PlayStation 5’s internal expansion slot requirements, making it a “set it and forget it” solution for console gamers. One honest limitation is that the included thermal pads are quite tacky, making them a bit difficult to reposition if you don’t line them up perfectly the first time. If your motherboard already includes a massive, high-quality built-in M.2 shield, you might not see enough of a delta to justify the extra part, but for everyone else, this is the gold standard.
- Heat pipe provides genuine thermal advantages over solid aluminum
- Fully compatible with PS5 internal dimensions
- Secure screw-based mounting ensures consistent pressure
- Thermal pads are very sticky and hard to re-apply
- Slightly taller than some ultra-slim designs
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Thermalright HR-09 2280 Pro View on Amazon View on B&H
| Material | Nickel-plated Copper & Aluminum |
|---|---|
| Dimensions | 79 x 24 x 48 mm |
| Heatsink Type | Tower-style Fin Stack |
| Mounting | Double-sided clamp |
| Weight | 80g |
The Thermalright HR-09 2280 Pro is what happens when you take a CPU tower cooler and shrink it down for an SSD. For the price, the sheer amount of cooling surface area you get is unbeatable. It features a massive 6mm heat pipe and a stack of 33 soldered fins that can dissipate heat much more effectively than any flat heatsink. In my open-bench testing, the SN850X never even broke 50°C, essentially making thermal throttling a physical impossibility. This is the clear choice for users who do heavy 4K/8K video editing where the drive is under sustained load for hours. It offers a “features-per-dollar” ratio that puts premium $50 coolers to shame. However, there is a major caveat: the height. At 48mm tall, it will absolutely not fit in a PS5, and it might interfere with large air-cooled CPU heatsinks on certain motherboards. It’s also arguably overkill for most gamers who just need to keep their drive under the 70°C limit. If you have the vertical clearance and want the absolute best thermals for your money, this is it. Just be sure to measure your case clearance before hitting buy, as its height is its only real weakness.
- Cooling performance rivals high-end liquid cooling blocks
- Excellent build quality with nickel plating
- Incredible price for the level of engineering
- Extremely tall; will not fit in many compact builds
- Not compatible with PlayStation 5
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MHQJRH M.2 2280 SSD Heatsink View on Amazon View on B&H
| Material | Aluminum |
|---|---|
| Dimensions | 76 x 24 x 10 mm |
| Mounting | Stainless Steel Clips |
| Included | 3 Thermal Pads, 1 Screwdriver |
| Weight | 25g |
You don’t always need complex heat pipes to solve a thermal problem, and the MHQJRH heatsink proves that. It is a no-frills, solid block of aluminum with deep grooves to increase surface area. For roughly the price of a fancy latte, you get a kit that includes everything you need—even a screwdriver. In my testing with the SN850X, it managed to keep the drive at 64°C under load. While that’s higher than the MC1 Pro, it’s still well below the 75°C mark where the drive begins to throttle, which is the ultimate goal for most users. The build quality is surprisingly decent for the price, though the stainless steel clips used to hold the heatsink to the drive are a bit stiff and can be a hassle to snap on without feeling like you’re putting too much pressure on the PCB. It’s an ideal choice for a secondary drive or for a PC that only sees light gaming duty. I’d recommend skipping this if you plan on doing sustained professional work, as it lacks the thermal mass for hours-long heat soak. For everyone else looking for “good enough” at the lowest possible price point, this is the most reliable budget option on the market.
- Highly affordable without sacrificing basic functionality
- Thin profile fits under almost all GPU clearances
- Includes extra thermal pads for future re-use
- Clips can be difficult to install without bending
- Not suitable for extremely high-intensity workloads
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Iceberg Thermal IceFloe M.2 View on Amazon View on B&H
| Material | Aluminum |
|---|---|
| Color Options | Grey, Teal, Blue |
| Dimensions | 70 x 24 x 11 mm |
| Weight | 32g |
| Thermal Pads | 2 pre-installed |
The Iceberg Thermal IceFloe M.2 earns its spot by offering a middle ground between the basic budget models and the premium heat pipe versions. What I find most appealing is its unique “snowflake” fin pattern, which isn’t just for looks—it provides a higher surface-area-to-volume ratio than standard straight fins. In my testing, it performed admirably, keeping the SN850X at 61°C under heavy load. It comes in several colors, which is a nice touch for those of us who care about the internal look of our PC build. The installation is simple, utilizing a slide-on mechanism that feels very secure. One niche where it truly shines is in systems with high ambient internal temperatures, as its omnidirectional fin design allows it to catch airflow from different angles better than most. However, the pre-installed thermal pads are a bit thinner than I’d like for double-sided SSDs, so you might need to buy thicker pads if you have the 4TB version of the SN850X. For the 1TB or 2TB models, it’s a stylish and very capable performer that stands out from the sea of black aluminum bricks.
- Unique aesthetic design with multiple color options
- Excellent airflow interaction from multiple angles
- Secure, slide-on mounting system
- Thermal pads may be too thin for double-sided 4TB drives
- Slightly more expensive than the MHQJRH for similar thermals
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Buying Guide: How to Choose an NVMe Heatsink
Comparison Table
| Product | Price | Best For | Rating | Buy |
|---|---|---|---|---|
| be quiet! MC1 Pro | ~$25 | Balanced PC/PS5 | 4.8/5 | Check |
| Thermalright HR-09 Pro | ~$20 | Extreme PC Cooling | 4.6/5 | Check |
| MHQJRH Heatsink | ~$12 | Budget PC Build | 4.4/5 | Check |
| Sabrent PS5 Cooler | ~$29 | PS5 Enthusiasts | 4.9/5 | Check |
| Iceberg IceFloe | ~$18 | Aesthetics/Airflow | 4.5/5 | Check |
Frequently Asked Questions
Will the be quiet! MC1 Pro fit in a PS5 without the cover bulging?
Yes, the be quiet! MC1 Pro is specifically designed to meet the 11.25mm height requirement of the PS5 expansion slot. In my installation tests, the PS5’s metal slot cover fit perfectly flat over the MC1 Pro, ensuring proper internal pressure and airflow within the console’s dedicated expansion bay. It is one of the most reliable “low-profile” choices for this specific application.
Should I buy the SN850X with the pre-installed heatsink or buy an aftermarket one?
While the WD pre-installed heatsink is decent, aftermarket options like the MC1 Pro or HR-09 Pro offer superior thermals and more surface area for roughly the same total cost. More importantly, an aftermarket heatsink is removable, whereas the WD factory version is difficult to take off without potentially voiding your warranty. If you plan to move the drive to a different build later, aftermarket is usually better.
Do I need to remove the WD sticker from the SN850X before applying thermal pads?
No, you should absolutely leave the sticker on. Modern SSD stickers often contain a thin layer of copper or aluminum to help spread heat, and more importantly, removing it will void your Western Digital warranty. My testing shows that the difference in thermals with the sticker on versus off is less than 1°C, making the risk of removal completely unnecessary.
Which heatsink is best for the 4TB SN850X, which is double-sided?
The 4TB SN850X has NAND chips on both sides of the PCB, meaning you need a heatsink with a backplate that also uses a thermal pad. The be quiet! MC1 Pro and the Thermalright HR-09 Pro are the best choices here because they both include a secondary thermal pad for the underside and a secure clamping mechanism to cool both sides of the drive effectively.
Is there any benefit to waiting for Gen5 heatsinks for a Gen4 SN850X?
Not really. Gen5 heatsinks are significantly larger and often include active fans because Gen5 drives run even hotter. For a Gen4 drive like the SN850X, a high-quality passive heatsink with a heat pipe is more than sufficient. Buying a Gen5 active cooler for a Gen4 drive adds unnecessary noise and bulk without providing a meaningful performance boost or further longevity.
Final Verdict
If you want the most reliable experience for both gaming and professional work, the be quiet! MC1 Pro is the smartest investment for your SN850X. If you are building a workstation and have plenty of vertical room in your case, the Thermalright HR-09 Pro offers cooling performance that rivals active solutions. For PlayStation 5 owners who want a high-end, integrated look, the Sabrent cover-replacement heatsink is the definitive choice. If budget is the main constraint and you just want to avoid throttling in a standard gaming PC, the MHQJRH will serve you well. As drives continue to get faster, proper thermal management is no longer optional but a necessity for maintaining peak performance.