SR2108 M.2 2242 SSD Heatsink – Aluminum Passive Cooling Thermal Pad for NVMe & SATA 2242 Drives

The SR2108 is designed specifically for the M.2 2242 form factor — 22 mm wide and 42 mm long. It will not fit 2280, 2260, or 2230 drives without modification. To confirm your SSD’s form factor, check the label on the drive itself or look up the model number in your SSD manufacturer’s spec sheet. The four-digit number after “M.2” indicates width and length in millimeters (e.g., 2242 = 22 mm wide, 42 mm long).

Yes. The SR2108 is a passive aluminum heat spreader that attaches to the top surface of the SSD via a thermal pad. It is compatible with both NVMe (PCIe) and SATA protocol M.2 2242 drives, since it makes no electrical connection — it only contacts the physical surface of the drive. As long as your drive uses the 2242 physical footprint, the protocol does not affect compatibility.

A pre-cut thermal pad is included in the package to bond the heatsink to the SSD surface. Thermal paste is not required or recommended for this flat-contact heatsink application — the thermal pad fills microscopic surface gaps more effectively than paste in this geometry. Please refer to the product images to confirm the exact contents of your package.

Actual results depend on your enclosure’s airflow, the SSD’s workload, and ambient temperature. Passive aluminum heatsinks for M.2 SSDs typically reduce operating temperatures by 5–15°C under sustained sequential read/write loads. This is generally enough to prevent thermal throttling on drives that lack a built-in heat spreader, keeping transfer speeds consistent during large file transfers or extended workloads.

The SR2108 adds a small amount of height above the SSD surface. Before installing, verify that your laptop’s M.2 slot cover, chassis panel, or drive bay has sufficient vertical clearance. In most mini-PC, NAS, and industrial embedded enclosures this is not an issue. However, some ultrabooks and thin laptops have very tight tolerances above the M.2 slot — always measure available clearance before purchasing.

Installation is generally tool-free: peel the protective backing from the thermal pad, align the heatsink over the SSD with the fin side facing up, and press firmly for several seconds to bond. Some package variants may include a small retention clip. Check the included instruction sheet or product images for the exact installation steps for your unit.

The black anodized aluminum finish provides basic corrosion resistance suitable for standard indoor environments. It is not rated for outdoor use, high-humidity conditions, or environments where condensation may form on electronics. For industrial or outdoor deployments, the SSD and heatsink should be housed in a sealed, environmentally protected enclosure.

The numbers refer to physical dimensions: 2242 = 22 mm wide × 42 mm long; 2280 = 22 mm wide × 80 mm long. A 2280 heatsink is nearly twice as long and will overhang a 2242 drive significantly, potentially blocking adjacent slots or preventing the drive from seating correctly. The SR2108 is sized to match the 2242 footprint exactly, providing full coverage without any overhang.