D-link DWR-M921B/D1 — 4G LTE Wi-Fi router (SIM)
The D-Link DWR-M921B/D1 is a versatile 4G LTE router that uses a SIM card to provide internet connectivity via mobile broadband. It’s designed for use in areas without reliable fixed-line internet, or as a backup/failover solution. This model stands out because it supports LTE connectivity, 300 Mbps Wi-Fi, and optionally includes a 5,000 mAh battery, making it ideal for both stationary and portable use.
Fast Mobile Internet
The 4G LTE Router lets you connect to your 4G LTE cat4 high speed mobile connection with fast download speeds of up to 150 Mbps2 and upload speeds of up to 50 Mbps2, giving you a fast and responsive Internet experience, allowing you to surf the web with ease and stream music and video without buffering.
Secure Wired and Wireless Connections
The DWR-921 utilizes dual-active firewalls (SPI and NAT) to prevent potential unwanted intrusions from Internet. WPA/WPA2 wireless encryption keeps your wireless network secure and your traffic safe, allowing you to securely share your 4G LTE or 3G connections without worrying about unauthorized users accessing your network.

Easy to Set Up and Use
The DWR-921 4G LTE Router can be installed quickly and easily almost anywhere. This router is great for any situations where a wireless network is needed, or wherever conventional Internet access is unavailable. The DWR-921 can even be installed in buses, trains, or boats, allowing passengers to check e-mail or chat online while commuting or travelling.
Specification
| Technical Specifications | ||
| General | ||
| Frequency Support1 | • LTE Bands:• Release 10, Cat 4: Band 1/3/7/8/20 (800/900/1800/2100/2600 MHz)
• Pentaband UMTS/HSPA/HSPA+/DC-HSPA+ • Bands 1/2/3/5/8 (850/900/1800/1900/2100 MHz) |
• Quadband GSM/GPRS/EDGE• 850/900/1800/1900 MHz |
| Data Throughput2 | • LTE Mode• Downlink: Up to 150 Mbps
• Uplink: Up to 50 Mbps |
• DC-HSPA Mode• Downlink: Up to 42 Mbps
• Uplink: Up to 5.76 Mbps |
| Standards | • IEEE 802.11n/g/b• IEEE 802.3i | • 802.3u |
| Wi-Fi Data Rates2 | • Up to 300 Mbps with 802.11n clients• 6/9/11/12/18/24/36/48/54 Mbps in 802.11g mode | • 1/2/5.5/11 Mbps in 802.11b mode |
Functionality |
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| Wireless Security | • 64/128-bit WEP (Wired Equivalent Privacy)• WPA & WPA2 (Wi-Fi Protected Access) | • WPS (Wi-Fi Protected Setup) |
| Firewall | • Network Address Translation (NAT) | • Stateful Packet Inspection (SPI) |
| Advanced Features | • L2TP/PPTP/IPSec VPN Passthrough• User configurable multi-WAN
• DMZ (Demilitarized Zone) • Port/Application Forwarding • URL Filter |
• QoS engine (Quality of Service)• Scheduler
• Virtual server • Two-way filtering |
Physical |
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| Device Interfaces | • Four 10/100 Ethernet LAN ports• WAN (RJ-45) port
• Wireless N |
• Standard Mini-SIM/UICC slot• Two detachable 3G/4G antennas |
| LED Status Indicators | • Power• LAN
• WLAN |
• 4G• 2G / 3G
• Signal Strength |
| Dimensions | • 190 x 116 x 22.4 mm (7.43 x 4.57 x 0.88 inches) | |
| Weight | • 295 g (0.65 lb) | |
| Temperature | • Operating: 0 to 40 °C (32 to 104 °F) | • Storage: -10 to 70 °C (14 to 158 °F) |
| Humidity | • Operating: 10% to 90% non-condensing | • Storage: 0 to 95% non-condensing |
| Certifications | • CE | |









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