| Product Type | 4G LTE M2M Modem |
| Model Number | DWM-311-B1 |
| Form Factor | External |
| Enclosure Type | Housing - External Enclosure |
| Weight | 120 g |
| Power Input | 5V DC via Micro-USB |
| Max Download Speed | 150 Mbps |
| Max Upload Speed | 50 Mbps |
| Use Case | Industrial M2M and IoT Connectivity |
D-Link DWM-311-B1 Wireless 4G LTE M2M Modem, External, USB/Gigabit Ethernet

Key Benefits
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- Delivers high-speed LTE connectivity up to 150 Mbps, ensuring fast and stable internet access for critical systems
- Versatile interface options including Gigabit Ethernet and Micro-USB provide flexible integration across industrial platforms
- TAA compliance and rugged design make it ideal for secure, long-term deployment in commercial and government infrastructures
Product Overview
The D-Link DWM-311-B1 is a high-performance 4G LTE modem designed for Machine-to-Machine (M2M) and IoT use. With a 1 Gbps transfer rate and external enclosure, it supports both USB and Ethernet interfaces, making it ideal for industrial networking. The modem includes dual SMA antenna ports, a Micro-3FF SIM slot, and is TAA compliant, ensuring compatibility with enterprise and government standards. Its compact form factor and cable-based connectivity deliver reliable, secure data transmission in remote environments.
Specifications
Product Overview
Wireless Features
| Cellular Technology | LTE |
| Cellular Generation | 4G |
| LTE Bands Supported | B1, B3, B7, B8, B20 |
| Fallback Technologies | EDGE, GPRS |
| External Antennas Supported | Yes, via SMA connectors |
| Antenna Configuration | Dual SMA external antenna connectors |
Compliance & Origin
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Certifications | CE, RoHS, FCC |
Advanced Security Features
| Security Protocols | PAP/CHAP authentication |
| VPN Support | PPTP |
| SIM Lock | Yes |
Interfaces
| Ethernet Ports | 1 x 10/100/1000Base-T RJ-45 |
| USB Ports | 1 x Micro-USB 2.0 |
| Antenna Connectors | 2 x SMA (Female) for LTE Antennas |
| SIM Slot | 1 x Micro SIM (3FF) |
| Data Transfer Rate | 1 Gbps (theoretical maximum) |
| Interface Supported | Gigabit Ethernet, USB 2.0 |
Physical & Environmental
| Width | 77.4 mm |
| Depth | 68.5 mm |
| Height | 26 mm |
| Operating Temperature | -10°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Operating Humidity | 10% to 90% (non-condensing) |
| Mounting Options | Desktop or wall-mountable |
| LED Indicators | Power, Status, Signal Strength, Network |
Cloud Management & Licensing
| Remote Management Capability | Supported via Web UI |
| Management Interface | Web-based GUI |
| Firmware Upgrade Method | Web UI |