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Why are there two sizes of Cat 1 modules?

User-friendly enhancements.

Cat 1 Module The wireless communication module supports full netcom LTECat 1 and GPRS communication, with wide coverage and strong stability.

Mega intelligent Cat. 1 module SLM320 adopts ziguang zhanrui chunteng 89 10DM next-generation Cat. 1 IOT chip platform, adopts 28nm mature technology, supports VoLTECat. 1bis and GSM dual modes, and the uplink rate of Wi-Fi is 5Mbps and the downlink rate is/kloc-. Its size is 32.0×29.0×2.4mm, which is completely compatible with the previous Cat.4 module, greatly facilitating the design and switching work of customers.