D-Link DWM-311-B1

Overview

The D-Link DWM-311-B1 is a 4G LTE Cat 4 modem and Ethernet bridge designed to provide reliable mobile broadband connectivity where traditional wired internet is unavailable or impractical. It supports high-speed data transfer through a dedicated Gigabit Ethernet port and works with major carriers like Verizon and AT&T. Built for industrial and commercial environments, it operates in extreme temperatures ranging from -22 to 140 °F and features a rugged zinc plated steel enclosure to withstand knocks and vibrations.

Key features

• Enables 4G LTE Cat 4 connectivity via a micro-SIM card, delivering mobile broadband to M2M devices and network equipment
• Dedicated Gigabit Ethernet port ensures fast and stable wired network connections for critical devices
• Compatible with leading cellular carriers including Verizon and AT&T, providing broad network coverage
• Durable zinc plated steel housing protects internal components in harsh industrial settings
• Wide operating temperature range supports deployment in environments from freezing cold to extreme heat
• Supports OpenVPN to secure data transmissions over public cellular networks, enhancing privacy and security
• Optional D-ECS cloud platform allows remote monitoring, configuration, and troubleshooting for IT teams
• Powered through a common Micro USB connector, offering flexible power options for various installations
• Includes hardware for both wall and DIN-rail mounting, simplifying installation in control cabinets, kiosks, or outdoor enclosures

Key specs

• Network standard: 4G LTE Category 4
• Ethernet port: 1 x Gigabit Ethernet (10/100/1000 Mbps)
• Carrier compatibility: Verizon, AT&T, and other major providers
• Operating temperature: -22 to 140 °F (-30 to 60 °C)
• Enclosure material: Zinc plated steel
• Power input: Micro USB connector
• Mounting options: Wall mount and DIN-rail mount included

Connectivity and compatibility

This modem bridges cellular networks to Ethernet-based devices, making it suitable for integrating with a wide range of equipment such as ATMs, vending machines, surveillance cameras, and digital signage. Its compatibility with major US carriers ensures dependable service in many locations, while the Gigabit Ethernet port supports high-speed connections to routers, switches, or other network hardware.

Performance and reliability

Designed to maintain connectivity in challenging environments, the DWM-311-B1 withstands physical shocks and temperature extremes that would disrupt typical consumer devices. Its OpenVPN support adds a layer of security for sensitive data, making it a strong choice for business-critical applications that require both durability and secure communications.

Installation and setup

The modem’s compact design and included mounting hardware allow for easy installation in tight or industrial spaces without special tools. Powering via Micro USB adds flexibility, enabling use with common power adapters or USB power sources. The optional cloud management platform simplifies ongoing maintenance by enabling remote monitoring and configuration, reducing the need for on-site visits.

Ideal uses and environments

This modem fits well in scenarios where wired internet is unavailable or unreliable, such as construction sites, remote offices, pop-up retail locations, and outdoor kiosks. It is also a practical backup solution for critical systems that cannot afford downtime. Businesses that require secure, stable mobile broadband for M2M communications or network bridging will find this device a dependable option.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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