There are two primary hardware revisions of this device, which are critical to distinguish for technical users:
The Huawei E3372 has a massive following in the enthusiast community due to the ability to "cross-flash" firmware. huawei e3372
: Features two CRC-9 external antenna connectors to improve signal strength in weak areas. There are two primary hardware revisions of this
: 4G LTE (Cat 4) with download speeds up to 150 Mbps and upload speeds up to 50 Mbps . huawei e3372
: It is noted for superior TCP congestion control compared to cheaper alternatives, preventing session freezes during high-load tasks like CAD rendering or multi-tab browsing.