I suppose 1SIM / 2SIM / 3SIM is OK, but we can go into details and specify SIM / microSIM / etc.
Plus M.2 (NGFF) slot right after miniPCI ports please.
A lot from https://www.gl-inet.com/products/ have normal mini PCIe slots and so you can install normal laptop LTE modules. They mainly run a openwrt variant with a different UI, but can be flashed to stock openwrt.
Sure how else would you use LTE?
The GL-X750 is pretty popular and reasonable priced.
PS: Whats also nice is that most models come with a MicroSD slot, so you can easily setup a extroot and expand the flash memory for larger openwrt builds.
I don't have strong opinions on the format. The number and type (size) of the slots is obviously useful additional information. But only counting slots by itself might also be misleading. 2 SIMs could mean either support for 2 modems or for 1 modem with some dual SIM scheme. Don't know if this is important though. It's a bit of a theoretical problem.
An incomplete list of devices with SIM slots and some sort of OpenWrt support (needs verification!!! don't trust me. I have no first hand experience with any of these):
Re: SIM format:
Is the SIM format really needed? I mean, is SIM format an important criteria when selecting a device?
Just recently I got a SIM card for a tablet. It came as nano-SIM, in a micro-SIM, in a mini-SIM. Matroshka-like. Therefore I personally couldn't care less about the format of the SIM card.
No, this is not necessary. And thinking about it, I am not sure the format I am listing is correct. Better leave it out to ensure that we only provide relevant and correct information.
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