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Stronghold Secure Arduino Development Board With 3G/GSM Connection ... • Additional 1.6A-rated MOSFETS for supply control for accessories. • Auto fuse holder, thermal cutoff, PTC, input ...
At $350, it’s one of the more expensive Arduino accessories you can buy. Relative to the prices for something similar a decade ago, though, it’s a steal — it’d be 5-10x the price ...