D-Link 10G Multi-Mode 850nm 300m SFP+ Fiber Transceiver

The D-Link DEM-431XT is an SFP+ fiber transceiver that delivers 10 Gigabit Ethernet connectivity to switches, servers, and other network gear equipped with an open SFP+ slot. It is purpose-built for environments where fast, dependable links are essential, such as data centers, enterprise wiring closets, and service provider points of presence.

Using an 850 nm wavelength over multi-mode fiber, the module moves data at up to 10 Gbps and maintains that speed for distances of up to 300 meters. This reach is well suited to connecting racks within the same room, joining adjacent wiring closets, or extending high-bandwidth services across a campus floor.

Because the DEM-431XT is hot pluggable, you can insert or replace it while the host device remains powered on. Network administrators save valuable maintenance windows and avoid unplanned downtime, whether the task is a quick upgrade or a field swap.

The transceiver follows both IEEE 802.3ae and the SFP+ Multi-Source Agreement, so it integrates cleanly with D-Link switches and with other standards-based platforms. Its efficient power profile helps conserve energy and allows higher port densities in chassis where every watt and every slot matter.

Typical uses include linking top-of-rack switches to aggregation layers, connecting storage arrays to servers for rapid backups, and providing short-range 10G uplinks in branch offices that are modernizing their core networks.

Highlights:

• 10 Gigabit Ethernet over multi-mode fiber
• Operates at an 850 nm wavelength with reach up to 300 meters
• Hot pluggable SFP+ form factor simplifies installation and replacement
• Compliant with IEEE 802.3ae and SFP+ MSA standards
• Low power design supports higher port density in crowded racks
• Compatible with D-Link 10G switches and other standards-based devices