4 ms·
The slot in question is not a slot for a part 15 WiFi card. It's a slot for a cellular modem, complete with pins going to a SIM slot. There's FCC complications
by wl 2y ago
The slot in question is not a slot for a part 15 WiFi card. It's a slot for a cellular modem, complete with pins going to a SIM slot. There's FCC complications with that that go beyond the standard part 15 rules. You're also dealing with carrier certifications—yes, carriers want your precise M.2 cellular modem, laptop, and antenna configuration tested before they allow your device on the network. (In practice you can get away with not doing this, although some carriers are making moves to eventually disallow devices whose TACs can't be tied to a carrier certification.)
- ssl-3 2y agoEh? I didn't know that only one singular slot was in question here, or that the conversation had shifted from talking about WiFi to instead talking about cellular. My own ThinkPad absolutely has independent slots for WiFi and cellular cards, and they look similar but they aren't even electrically compatible. (One is a mini PCIe with PCI Express and without USB, and the other is mini PCIe with USB and without PCI Express.)