r/SBCs

My edge AI company is up and running. Venture's have been launched and we are driving toward our first revenue. Check out the build, the whole process is document! Jetson is the core!

Greg @ BlackBox AI Lab - YouTube

So far so good. 36-39C on idle, 49-52C streaming 1080p YouTube.
2 cons for me:

1. Nowhere to attach external antennas.
2. Can’t use my 2242 and 2280 SSDs, so waiting for 2230 SSD to arrive.
   Would be cool to have some angular adapter to attach the SSD to the bottom of the case or just to the side (same as the one on the picture but the other way around). But I couldn’t find such thing on Aliexpress.

Someone from Radxa just leaked their new SBC in the Discord.

The Dragon Q8B will run on the Qualcomm Snapdragon 8cx Gen 3. It will have 4x USB 3.2 10gbps and probably a 4x16 bit LPDDR4x memory bus.

The 8cx was built for windows Laptops so we will probably get support for it. In relation to SBCs it has an extremely powerful CPU (and GPU) which can compete with mid-range desktop CPUs like the i5-1235U.

It will technically be slightly slower than the Orion o6 but with much better software/driver support. And still faster than the other two Qualcomm SBCs from Radxa (except the npu from the Q900).

In general it will probably be released on May 30.

What are your thoughts about it and what do you think it will cost?

Geek bench:

https://browser.geekbench.com/v6/cpu/17815215

Long time lurker, first time poster with an actual project to share. I'm building Octane — an open source retro gaming handheld platform from scratch. Here's the full breakdown.

The brain: Radxa Cubie A7S

Allwinner A733, 6GB LPDDR5, WiFi 6, USB-C DisplayPort Alt Mode, ~$50. It's the only SBC at this price point that hits everything simultaneously: DPI GPIO lines for a direct-connect screen, USB-C DP Alt Mode for dock output, and a PCIe FFC expansion port that's become the key to the whole WiFi architecture.

The OS: OctaneOS

A custom Batocera Linux fork with Allwinner A733 support built from the ground up. Zero upstream Batocera A733 support exists — everything below the emulation layer (kernel, device tree, display driver) is being written specifically for this hardware. Kernel is Linux 5.15 from Radxa's Allwinner AIOT BSP.

Three play modes baked into the OS:

- Handheld — DPI screen direct via LCD0 GPIO

- Wired docked — USB-C DisplayPort Alt Mode, one cable does everything

- Wireless streaming — MT7921K M.2 on the PCIe FFC port as a dedicated private AP radio, streams to a Raspberry Pi Zero 2W in the dock

The dual WiFi architecture:

This is the part I'm most proud of figuring out. The onboard FCU760K handles home network internet as wlan0. The MT7921K M.2 card on the PCIe FFC expansion port runs as wlan1 — a completely independent radio on an independent bus, acting as a private AP for the streaming session. Two fully isolated radios, no interference, no shared bandwidth. Intel AX210 was ruled out because LAR enforcement blocks 5GHz AP mode on Linux.

The dock:

Raspberry Pi Zero 2W as the dock chip. Outputs HDMI, Component (Y/Pb/Pr), and Composite simultaneously — all three live with no selector switch. Plug in your CRT, your PVM, and your modern TV at the same time and they all get a signal. No commercial handheld at any price does this. Composite is native on the Pi Zero 2W — single solder point. Component via a small DAC board.

The CI pipeline:

Full Buildroot compile on GitHub Actions. The build spans multiple sessions over weeks of active development on an A733 target that didn't exist before this project. A checkpoint-failure cache technique keeps build artifacts alive across runs so nothing gets thrown away between sessions. Hat tip to suckbluefrog from Batocera-Multilib for pre-packaged dl cache tarballs for ecwolf and same-cdi — those two packages would have been a permanent CI blocker otherwise.

Where it stands:

Build environment up, A733 target defined, CI running. Hardware not yet in hand — building the software stack before the board arrives. Very much in progress and building in public from day one.

Everything is open source — spec, OctaneOS source, wiring diagrams, STL files, all of it.

*Disclosure: OctaneOS is developed with Claude Code assistance per community rules. The architecture decisions, hardware research, and project direction are mine — Claude Code handles build system execution and file-level work.*

Links:

- GitHub: github.com/GameOctane/OctaneOS

- Full build system writeup: gameoctane.com/how-octaneos-is-built-the-architecture-behind-the-software

- Project intro: gameoctane.com/introducing-a-new-open-source-handheld-octane

Happy to go deep on the A733 bring-up, the dual-radio architecture, the PCIe FFC expansion, or anything else. This community has been a huge reference — glad to finally have something to contribute back...and learn more than I ever realized was possible.

https://arace.tech/products/milk-v-jupiter-2

https://sipeed.com/k3

Looks like the Milk-V Jupiter 2 is now available for purchase and Sipeed has the K3 Pico-ITX and the K3 CoM260 Kit are available for purchase.

Both companies seem to be using the exact same CPU. So which one would you choose and why?

The Luckfox Aura is an impressive compact embedded single board computer (eSBC) built around Rockchip's RV1126B, packing quad-core performance, a built-in NPU for edge AI, Wi-Fi 6 dual-band, gigabit Ethernet with PoE support, USB 3.0, dual MIPI CSI-2 quad-lane camera connectors, 4K video encode and decode, MIPI DSI display output, an RTC battery connector, and onboard audio, all starting from just USD $50.

In this video I unbox the board, take a close look at the hardware, flash Debian 13 (Trixie) to the eMMC using SoC Toolkit, connect to Wi-Fi, run apt update and upgrade, and put it through the SBC Tier List where it earns a well-deserved S class.

Whether you're after something ideal for running OpenClaw with local TTS and STT, aiming to run Frigate NVR with RKNN inference, want a PoE-powered headless Linux server, or are simply after an affordable Debian board that works right out of the box, the Luckfox Aura is well worth a look.

Is anyone familiar with this SBC or have used it? I'm curious to know what other people's experience has been with this board. I've bought the 4GB model since the 8GB model is set to be released in mid 2025 and I'm impatient.

Edit:

I realized I was a complete idiot... It is 2026, I could have literally just spent the extra $40 ish for the 8GB model and got it at the same time... FML

Edit number 2:

I was able to get it rectified, so now I have the 8GB model coming.