Attributes

Brand	-
Category	Electronic Components Market / GSM/GPRS/3G/4G Modules
Origin	-
Network Standard	4G LTE Cat.1, GSM/GPRS
Frequency Bands	B1/B3/B5/B8 (Full Netcom)
Protocol Support	TCP/IP, MQTT, HTTP, FTP
Microcontroller Compatibility	Arduino, STM32, ESP32, 51 MCU
Communication Interface	UART (TTL Level)
Operating Voltage	3.3V - 4.2V DC
Antenna Interface	IPEX Connector
SIM Card Type	Standard SIM / Micro SIM Adapter
Data Rate	Up to 10 Mbps Downlink
Operating Temperature	-40°C to +85°C

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Great value, needs careful wiring

The module itself is powerful and supports all the bands I need. Just be careful with the voltage supply; it needs a stable 3.7V source to avoid boot loops. Once powered correctly, it's very reliable.

Anonymous

Mar 28, 2026

Rating: 5/5

Excellent 4G Cat.1 Performance

Upgraded from an old SIM800L to this 4G module. The latency is significantly lower, and the MQTT throughput is much better for sending sensor data. Highly recommended for modern projects.

Anonymous

Mar 21, 2026

Rating: 5/5

Easy integration with STM32

Used this with an STM32F103 board. The UART communication is clean, and the AT commands are standard. Documentation could be slightly more detailed, but online resources fill the gaps easily.

Anonymous

Mar 18, 2026

Rating: 5/5

Best bang for your buck

For the price, you cannot beat the features. Full netcom support means it works with any carrier SIM card I tested. The sleep mode current is also quite low, perfect for battery-powered apps.

Anonymous

Mar 16, 2026

Rating: 4/5

Solid module for remote monitoring

Deployed five of these for remote weather stations. They have been running for two months without disconnection. The only minor issue is the IPEX connector feels a bit delicate during assembly.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect for IoT Prototyping

This Air780E module works flawlessly with my Arduino Uno. The MQTT connection to OneNet was established within minutes using the provided AT command set. Signal stability is impressive even in fringe areas.

5 FAQ

Q: Is the MQTT protocol built-in or do I need to code it?

A: The MQTT client functionality is built into the firmware. You can configure and connect to an MQTT broker like OneNet directly using specific AT commands without coding the stack yourself.

Q: Does this module require an external antenna?

A: Yes, the Air780E module has an IPEX connector and requires an external 4G/LTE antenna with an IPEX plug for optimal signal performance.

Q: What size SIM card does this accept?

A: The onboard slot is designed for a Standard SIM (Mini-SIM). If you have a Micro or Nano SIM, you will need a physical adapter to fit it into the slot.

Q: Does it support SMS functionality?

A: Yes, the module fully supports sending and receiving SMS text messages via standard AT commands, in addition to data services.

Q: Can I use a 5V Arduino directly to power this?

A: No, the module operates between 3.3V and 4.2V. You must use a voltage regulator or a dedicated power bank to step down 5V to approximately 3.7V to prevent damage.

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