Raspberry Pi 4 model Bs arriving with newer 'C0' stepping

I've had a good experience with using a passive heatsink case on my Pi 4s. It's not lightweight, but there's a lot of thermal mass and plenty of surface area for cooling. https://thepihut.com/products/aluminium-armour-heatsink-case...

I've got one sitting here driving some animations in chromium on a spare display, currently running with a load average of 1.1 (so not working flat out on all cores, but doing a moderate amount of work). CPU temp is 49C, and the case/heatsink is just pleasantly warm to the touch.

Passive has been practical for a while with the Argon or Flirc cases.

I've been getting ~50C temps at 10-20% load using a Flirc case for the RPi 4. (21.2 C ambient in my basement; technically the RPi is in a large cupboard but I don't recall that being noticeably warmer.)

After compiling a rust program on 4 cores last week for nearly an hour, I think I hit ~72C on the CPU very briefly if memory serves, but temps dropped immediately any time rustc let off the gas.

I wasn't able to find anywhere to buy just the board, but starter kits with sd card/power adapter/hdmi/etc are available on Amazon for ~100 USD as of this past Thursday.

Lately only the 8 GB models have been in stock at Micro Center, as well as a smattering of older models and a few Compute Module 4s.

Apparently this year's seen record demand, and even with a better supply chain, Raspberry Pi Trading's had a hard time keeping up [1].

[1] https://forums.theregister.com/forum/all/2021/08/20/raspberr...

Just bought this one for ~$60 (4gb with a power supply) on ebay.

https://www.ebay.com/itm/Berryku-Raspberry-Pi-4-Model-B-DIY-...