2Pcs 80mm Heatsink 80 x 40 x 11mm Black Aluminum Heat Sink Radiator Cooler with Thermal Conductive Adhesive Tape Cooling Fin for Cooler Electronics CPU Led

Pros: • Worked perfectly for cooling an M.2 NVMe drive enclosure • Thermal tape adheres well and appears to have good thermal transfer Cons: • Fins could be a bit thicker, and not have slits to increase surface area I am using this heatsink on the surface of an ACASIS TBU401E Thunderbolt M.2 NVMe external drive enclosure. This enclosure has a SK Hynix P41 NVMe SSD in it that gets quite warm. The ACASIS drive enclosure is generally excellent other than its thermal performance. It was getting rather hot with the high performance P41 SSD and was concerned with thermal throttling and degraded lifetime of the drive. This heatsink has lowered the temperature considerably. I should have taken before and after temperatures, but I didn’t. It does feel considerably cooler now though. The heatsink is warm and so is the rest of the drive. This indicates the heatsink is doing exactly what was hoped for; it is efficiently removing heat. The thermal tape is working well transferring heat from the bottom cover to the heat sink, and physically retaining the heatsink as well. The ACASIS drive enclosure has a thermal pad between the M.2 SSD and the bottom cover. This transfers heat from the drive to this cover modestly well, but that cover isn’t large and there is relatively poor thermal transfer from the cover to the rest of the enclosure housing. The result is that only the cover serves to remove heat from the drive. Adding this heat sink to the cover substantially increases the thermal mass and surface area. The size of the heatsink matches the size of the SSD reasonably well, and fits easily and neatly on the cover of the enclosure. Overall, it is a good fit. I could have used a few more millimeters on each side and height, but this works well and looks relatively neat. This may reduce the portability of the drive, but for my application it is being used in a fixed location so not an issue. This works very well with this M.2 drive enclosure, and will likely work well for other similar external M.2 NVMe external drive enclosures.

Great Heat sink, works well on my Xiegu X 6100 & amplifier.

My external SSD started to warm up, dare i say overheat. Bought this and combined with small fan to place the SSD on, and the heat is virtually gone.

Works like intended

Excellent fit for heat sink for the Samsung T7 Portable SSD 2TB I purchased from Amazon. I also added small rubber feet AUSTOR 318 Pieces Black Rubber Feet Bumper Pads purchased from Amazon. SSD stays cool during lengthy high data-rate transfers and rubber feet keeps it from sliding off the top of my PC.

This heatsink fit really well, considering the available space, and odd size of the 68040 chips. It hangs off a bit, and don't completely cover the package, but it does cover the core well. I thought about cutting the excess off, but it works well as is to draw heat from the CPU. I have shoe-horned a small Noctua fan to blow across the 68040, as well as the 486DX/2 sitting next to it. This is a Macintosh Performa 630CD DOS Compatible - so has both a 68k and 486 CPU - and very tight space within the case once fully assembled. For my use case, this heatsink works wonderfully (especially considering a form-fashioned 68040 CPU heatsink, the only one I could find, was $70)

Cooled down my router. Works good.

Description and functioned were as described. no issues