4G full network compatibility, supporting China Mobile, China Unicom, and China Telecom Maximum upload rate of 5Mbps and maximum download rate of 10Mbps for LTE-FDD Supports local and remote upgrade of DTU programs Compatible with 3.3V and 5V levels Supports multiple network protocols including TCP, UDP, MQTT, HTTP, and Alibaba Cloud Network standard: 4G full network compatibility, supporting China Mobile, China Unicom and China Telecom Communication rate: ↓ (1)LTE-FDD:The maximum upload rate is 5Mbps and the maximum download rate is 10Mbps (2)LTE-TDD: Uplink and downlink configuration 1.The maximum upload rate is 4Mbps and the maximum download rate is 6Mbps (3)LTE-TDD:, uplink and downlink configuration 2.The maximum upload rate is 2Mbps and the maximum download rate is 8Mbps Power supply voltage: 5-12V Power protection :TVS protection TIL interface 1 UART Baud rate: 1200- 460,800 Data bit: 8 Stop positions: 1, 2 Parity bit: Odd, even, no parity Local upgrade: Supports USB update of DTU programs and log viewing Remote upgrade: Supports remote update of DTU programs Serial port uplink cache: 4K Network downlink cache: 4K Number of network channels: 8 Color: As Shown Material: PCB Package Contents: 1*4G Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.