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wingmanjdtoday at 6:21 PM3 repliesview on HN

Speaking of modules that lie about themselves, unifi has an interesting little device called the "SFP Wizard" that can reprogram sfp modules.

https://www.ui.com/us/en/integrations/accessory-tech/sfp-wiz...

Previously seen: https://news.ycombinator.com/item?id=45732874


Replies

kohlschuettertoday at 6:34 PM

You can also use a BananaPi BPI-R3 for reprogramming. And you can “upgrade“ 10 Gbit/s DACs to 25 Gb/s. Details here https://kohlschuetter.github.io/blog/posts/2026/03/22/unlock...

hdgvhicvtoday at 6:37 PM

I tend to use fs.com optics, but I’ve heard in high rates (100g plus) that flex optic tend to be more reliable

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theMMaItoday at 6:34 PM

fiberstore has them as well, plus you can buy modules, DACS and everything programmed to the vendor of choice, including different vendors on each end

Especially handy for specific Intel NICs where they refuse to link up if the module isn't in the driver-allowed list and those modules are hard to come by