When Raspberry Pi released the Pi 500, as essentially an RPi 5 integrated into a chiclet keyboard, there were rumors based on the empty spots on the PCB that a better version would be released soon. This turned out to be the case, with [Jeff Geerling] now taking the new RPi 500+ to bits for some experimentation and keyboard modding.

The 500’s case was not designed to be opened, but if you did, you’d find that there was space allocated for a Power-Over-Ethernet section as well as an M.2 slot, albeit with all of the footprints unpopulated. Some hacking later and enterprising folk found that soldering the appropriate parts on the PCB does in fact enable a working M.2 slot. What the 500+ thus does is basically do that soldering work for you, while sadly not offering a PoE feature yet without some DIY soldering.

Perhaps the most obvious change is the keyboard, which now uses short-travel mechanical switches – with RGB – inside an enclosure that is now fortunately easy to open, as you may want to put in a different NVMe drive at some point. Or, if you’re someone like [Jeff] you want to use this slot to install an M.2 to Oculink adapter for some external GPU action.

After some struggling with eGPU devices an AMD RX 7900 XT was put into action, with the AMD GPU drivers posing no challenge after a kernel recompile. Other than the Oculink cable preventing the case from closing and also losing the M.2 NVMe SSD option, it was a pretty useful mod to get some real gaming and LLM action going.

With the additions of a presoldered M.2 slot and a nicer keyboard, as well as 16 GB RAM, you have to decide whether the $200 asking price is worth it over the $90 RPi 500. In the case of [Jeff] his kids will have to make do with the RPi 500 for the foreseeable future, and the RPi 400 still finds regular use around his studio.

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