Intel owns the Killer (Networks) brand. But Atheros chips can be found in business-class laptops.Qualcomm Atheros: Link (Very common in Dell, Lenovo, and gaming laptops—often branded as Killer Networking).
You are absolutely right. Intel acquired Rivet Networks (Killer) back in 2020, so modern Killer cards are essentially Intel chips with custom firmware. I was mistakenly thinking of the older legacy Killer cards (like the 1525/1435) which were based on Atheros silicon. And you're spot on about Atheros still being heavily used in business-class laptops (like many ThinkPads and Latitudes using QCA61x4/QCA9377 chips).Intel owns the Killer (Networks) brand. But Atheros chips can be found in business-class laptops.