While 150 Mbps is the theoretical maximum for a Cat 4 device, actual speeds depend on several factors such as network congestion, the network operator, subscription plan, signal strength, and the specific location of deployment.
Additionally, the 4G module is connected via USB, not through SDIO.
iWave has validated performance on G41G device and as well on mobile device, observed similar perfomance. Attaching 4G performance data report for reference.
For further inquiries, please get in touch with mktg@iwave-global.com
Please find the detailed G41G product information in the below link,