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site iconJeff GeerlingModify

Creator, writer, and open-source contributor, specializes in application scalability and DevOps.
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SBC Clusters are a terrible value, but they're fun anyway

2026-05-01 22:00:00

DeskPi Super4C SBC Cluster Board in Waveshare HomeRack Mini Rack

Pictured above is the new DeskPi Super4C installed in an 8U mini rack. The Super4C is a 4-node Raspberry Pi CM5 cluster board that solves two pain points I had with the older Super6C.

I was testing this board around the same time I helped kick off the SBCC 2026, the Single Board Cluster Competition for students. A dozen or so university teams squared off to run the best mini HPC cluster with a budget of $6,000, and a couple days to benchmark six HPC workloads.

Raspberry Pi Connect may control Windows soon

2026-04-30 01:00:00

Support for remote controlling Windows PCs may be added to Raspberry Pi Connect, Raspberry Pi's free remote access service.

Raspberry Pi Connect controlling a Windows 11 PC

When they announced Pi Connect in 2024, I speculated the service was launched in response to RealVNC's sluggish adoption of Wayland, leading to Pi users lacking a solid remote access solution after Pi OS 12 'Bookworm' was launched.

The service was helpful for those who had one or more Raspberry Pis to access, but the Pi Connect daemon didn't run on Windows or macOS at the time, so a true competitor to RealVNC (at least for basic use cases) it was not.

New 10 GbE USB adapters are cooler, smaller, cheaper

2026-04-24 22:00:00

For years, the best way to get 10 gigabit networking on laptops was to buy an expensive, large, and hot 10 GbE Thunderbolt adapter. With new RTL8159-based 10G USB 3.2 adapters coming onto the market, the bulky adapters might be a thing of the past. Just look at the size of the thing in comparison to my Thunderbolt adapters:

10 Gbps Ethernet adapters for Thunderbolt and USB

2.5G and even 5G USB adapters have been out for a while, but sometimes you need more bandwidth.

An Arm Mainboard for the Framework Laptop

2026-04-15 22:49:00

Using the repair-friendly Framework 13 laptop chassis, I've tested the low-end x86 option (a Ryzen AI 5 340 Mainboard), the fastest RISC-V option (DC-ROMA II), and today I'm publishing results from the only Arm Mainboard, the MetaComputing AI PC, which has a 12-core Arm SoC and up to 32 GB of soldered-on RAM.

MetaComputing AI PC Mainboard next to Framework 13 laptop

My Framework 13 has run on x86, RISC-V, and now Arm, making it something of a 'Ship of Theseus'.

Build your own Dial-up ISP with a Raspberry Pi

2026-04-03 22:00:00

Last year my aunt let me add her original Tangerine iBook G3 clamshell to my collection of old Macs1.

iBook G3 accessing dial-up Internet over WiFi browsing the vintage web

It came with an AirPort card—a $99 add-on Apple made that ushered in the Wi-Fi era. The iBook G3 was the first consumer laptop with built-in Wi-Fi antennas, and by far the cheapest way to get a computer onto an 802.11 wireless network.

DRAM pricing is killing the hobbyist SBC market

2026-04-02 05:00:00

Today Raspberry Pi announced more price increases for all Pis with LPDDR4 RAM, alongside a 'right-sized' 3GB RAM Pi 4 for $83.75.

The price increases bring the 16GB Pi 5 up to $299.99.

Despite today's date, this is not a joke.

I published a video going over the state of the hobbyist 'high end SBC' market (4/8/16 GB models in the current generation), which I'll embed below:

But if you'd like the tl;dr: