March 17, 2025
Description
10Gbps SFP+ Ethernet modules can become quite hot.
In my Mikrotik CSS326-24G-2S+, the Mikrotik S+RJ10 will heat up to 81 C at 10Gbps and 75 C when running at 5 Gbps.
This simple clamp can be screwed to a SSD heatsink and placed over the SFP+ slots in the Mikrotik CSS326-24G-2S+ switch. (maybe also other switches)
The printed springs will press the heatsink down via the top cover of the switch.
This does not require any modifications to the switch at all.
The temperature as reported by the SFP+ module has dropped about 5 degree C.
Due to the expected temperatures, preferred print material is PETG or some other material which will not get soft at 75 C.
I used this SSD heatsink: https://nl.aliexpress.com/item/1005007658738414.html
The 2mm screws included with this heatsink are 60 mm apart.
The heatsink includes 2 pads. I was able to use the 0.5 mm pad, to get the best heat transfer and least chance some of the pad may be squeezed into the SFP+ socket.
Changes made to v2:
Used larger SSD heatsinks:
License:
Creative Commons — Attribution
9
TD-er
