D-Link DEM-431XT

Overview

The D-Link DEM-431XT is a 10G SFP+ fiber transceiver designed to provide high-speed Ethernet connectivity over multi-mode fiber. It operates at an 850 nm wavelength and supports data transmission speeds up to 10 Gbps with a reach of up to 300 meters. This makes it ideal for linking network equipment within data centers, enterprise wiring closets, and service provider locations where reliable, fast connections are critical.

Its hot-pluggable design allows network administrators to install or replace the module without powering down the host device, minimizing downtime and simplifying maintenance. The transceiver complies with IEEE 802.3ae and the SFP+ Multi-Source Agreement, ensuring broad compatibility with D-Link switches and other standards-based hardware.

Key features

• Delivers 10 Gigabit Ethernet connectivity over multi-mode fiber for high-bandwidth network links
• Operates at an 850 nm wavelength, supporting distances up to 300 meters to connect racks or adjacent wiring closets
• Hot pluggable SFP+ form factor enables easy installation and replacement without interrupting network operation
• Compliant with IEEE 802.3ae and SFP+ MSA standards for seamless integration with a wide range of network devices
• Low power consumption helps reduce energy costs and allows for higher port density in network chassis
• Suitable for connecting top-of-rack switches to aggregation layers, storage arrays to servers, and short-range uplinks in branch offices

Key specs

• Data rate: 10 Gbps
• Wavelength: 850 nm
• Maximum reach: 300 meters over multi-mode fiber
• Form factor: SFP+
• Standards compliance: IEEE 802.3ae, SFP+ Multi-Source Agreement
• Power consumption: low power design (exact wattage not specified)

Connectivity and compatibility

This transceiver fits into any open SFP+ slot on compatible network equipment, including D-Link 10G switches and other devices that adhere to the SFP+ MSA standard. It supports multi-mode fiber connections, making it a flexible choice for existing fiber infrastructure within data centers and enterprise networks.

• Compatible with D-Link 10G switches and other standards-based platforms
• Supports multi-mode fiber cabling for short to medium distance links
• Hot pluggable for easy upgrades and replacements without network downtime

Ideal uses and environments

The DEM-431XT is well suited for environments that require fast and reliable 10 Gigabit Ethernet links over short to medium distances. It works well in data centers for connecting top-of-rack switches to aggregation layers, in enterprise wiring closets for linking adjacent rooms, and in branch offices upgrading their core network infrastructure. Its low power profile and hot-pluggable design make it a practical choice for dense rack deployments where uptime and energy efficiency are priorities.

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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, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

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

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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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