Laptop NVMe M.2 Heatsink with Nano Thermal Pads and Mounting Screw，Heat Sink Copper for 2280 M2 SSD, No Rubber Ring Required

I think the general theme across reviews for this heatsink is that it's better than nothing and fits in tight places. I had the same experience as other reviewers with a significant drop in temperature about 15%, using synthetic benchmarks. It fits into a Asus rog G14 / Zephyrus 14, mounted to a Samsung 970 EVO Pro with no bulging.

ID: B0CMTBVV6MDescription: Awxlumv Laptop NVMe M.2 Heatsink with Nano Thermal Pads No Coil Fixing Required Heat Sink Copper for 2280 M2 SSD LaptopBrand: AwxlumvQuantity: 1231203 | 231221 | 240107TLDR Summary: Not 'High Performance', but effective and better than nothingWith this installed on a NVME PCIe Gen 3 and being monitored while ATTO is doing a series of tests, highest surface temps are down from 143° F (61° C) to 77° F(25° C), and operational sensor temps are down from 65° C (149° F) to 35° C (95° F).Peak Operational Surface Temps: without @ 61° C ; with @ 25° C (143° F / 77° F)Peak Operational Sensor Temps: without @ 65° C ; with @ 35° C (149° F / 95° F)Idle sensor temps: without @ 22° C ; with @ 11° C ( 71° F / 52° F)These are not the best numbers I have seen when applying a passive sink, but certainly better then nothing at all.The trick is to use the thermal pads that put the sides of the plate at the PCB, even flush with it, but not past it. Then take the time to ensure the center of each chip is covered by a thermal pad for maximum effect. Also make sure you have removed the protective film on both sides of the copper plate before placing it in the pads and installing it in the computer - if it has a bluish tint on either side, the film is still on that side - and will not only negate the heat dissipation, but might cook your M.2This was performed on an OptiPlex 5060 SFF (D11S) with a PCIe 3.0 4x NVMe Class 40 Self Encrypting Opal 2.0 Solid State Drive (SSDPEKKF256G7L) and no active case cooling, only transient air flow from the CPU squirrel fan.