For the embedded LTE modem on cellular Meraki devices, here is the synthesis of my searches : MG21 : Gemalto Wireless Module Cinterion : PLAS9-W (LTE (1, 3, 5, 7, 8, 18, 20, 28)) MG41 : Telit Cinterion : LM960A18 : LTE Cat 18 MG51 : Telit Cinterion : FN980 : LTE Cat 20 MG52 : Telit Cinterion : FN990A40 : SA (and NSA) 5G sub-6 FDD and TDD Z3C : Gemalto Wireless Module Cinterion PLS8-E (LTE (1, 3, 7, 8, 20)) Z4C : ??? (unfortunately cannot find the exact model) MX68CW : Gemalto Wireless Module Cinterion PLAS9-W (LTE (1, 3, 5, 7, 8, 18, 20, 28)) MX67C : Gemalto Wireless Module Cinterion PLAS9-W (LTE (1, 3, 5, 7, 8, 18, 20, 28))   If someone has the Z4C CAT 12 LTE modem information, it will be highly appreciated 🙂 ... View more

https://documentation.meraki.com/MR/Encryption_and_Authentication/MR_RADSec ... View more

Keep in mind that MX250 with MA-SFP-1GB-TX supports ONLY 1000Mbs. Sub-speed (10 or 100) is not supported...! ... View more