I’m tempted in this Bigtreetech Pad 5 carrier board (it’s now 70$ vs 99$ in April 22) with this RISC-V CM4 compatible SOM.
And look at this @tunagenes :
It’s a nice and Inspiring project build around the Pad 5 carrier board.
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it’s 99$ with 8G RAM and 64 EMMC at DF Robot now before going at 139$
Two carrier boards are available:
A Light version (39$) and a full featured in ITX format:
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Note the GPIO, I2C, UART, I2S headers
It’s 89$, and open source hardware (full KiCad sources are announced):
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A new SBC from BananaPi with à new octa core Risc-V chip:
BananaPi has a quiet bad reputation regarding software support of their ARM based SBC. So be carefull !!!
The chip, called spacemit-K1, can be found in a laptop announced at 300$:
Interesting and original feature: the laptop expose I2C UART and GPIO pins.
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This board use a MediaTek Genio 1200 chip with 4xA78 + 4xA55 cores and embed 4, 8 or 16G of RAM
Radxa says that their 8inch 1280x800 touch display is compatible with the board.
I do not know how its built in Cadence HiFi 4 DSP could be usefull.
Cannonical Ubuntu and Mediatek have announced a partnership last year for supporting this chip for at least 5 years.
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Excellent news for FOSS and Linux fans:
Qualcomm hire Linaro developpers for pushing onto mainline Linux kernel the support of their X Élite chips.
A couple of laptop equiped with this little beast are announced
- Yoga Slim 7x and Thinkpad T14s Gen 6 by Lenovo
- Galaxy Book4 Edge by Samsung
- Swift 14 AI SF14-11 by Acer
All are over 1200 bucks and all Copilot+ Pc certified. <=> All your activities are scanned quiet in real time, analyzed, and indexed by Microsoft Copilot AI.
For sure, this is a no go for me.
Two powerfull SBC in credit card format:
Radxa X4 with Intel N100, 4Gb RAM, Dual 4K Output, 2.5Gbps Ethernet, PCIe 3.0 M.2 M Key, WiFi 5/6
~ 73$ for 4G and 96$ for 8G of RAM
Orange Pi 5 Max 8GB RAM LPDDR5 Rockchip RK3588 Development Board M.2 PCIE 2.5G LAN WiFi+BT
114$ for 8G
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Hi @le51 
I guess that the main concerns for Zynthian Labs could be:
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Prospective availability of hardware in the mid-long term, and sufficient numbers in stock.
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Consistency and dependability of software development support.
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Interoperability with the Raspberry platform, as far as peripherals and accessories are concerned.
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Full compatibility with existing Zynthian code.
If it were up to me, I would be very wary of taking the plunge with a similar but slightly different hardware standard, unless there is promise for substantial improvement in performance and more efficient development.
From this standpoint, I personally see the RISC platform as a convincing alternative, as held by @tunagenes if I’m not wrong.
With a different philosophy, I can also foresee in the near future the promising prospect of stacking Raspi compute modules, with some kind of parallelisation control. I lack the IT and electronic engineering literacy for just beginning to outline how such a development could be achieved!
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Development proceedings I reckon!
Compute Module, what you can do (if talented enough of course 
Available on Github:
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