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DEM-431XT
D-Link 10G SFP+ optical module, multi-mode, 300 meters, wave...
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DEM-431XT is a high-performance XFP optical transceiver engineered for 10G data rates and designed with an LC connector interface. This device supports long-range transmission over single-mode fiber, offering extended reach up to 80 km while accommodating both Ethernet and Fibre Channel protocols, making it a reliable option for demanding network environments.
Built in a compact form factor with physical dimensions tailored for easy integration, the DEM-431XT is ideal for data centers, enterprise networks, and telecom applications. Its robust design ensures consistent performance in diverse operating conditions, and its compatibility with major network vendors like Cisco, Juniper, Huawei, and Arista makes it a versatile solution for today's network infrastructures.
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In a hyperscale data center environment, network architects deploy the DEM-431XT-D-Link 10G SFP+ optical module in multi-mode fiber uplinks between spine and leaf switches over distances up to 300 m. This 850 nm LC-connector solution delivers consistent 10 Gbps throughput, low latency and hot-swappable flexibility. Benefit: maximized port density and resilient end-to-end connectivity, enabling seamless east-west traffic flow and simplified capacity scaling.
A university IT team leverages the DEM-431XT-D-Link 10G SFP+ transceiver to interconnect remote academic buildings via multi-mode fiber runs up to 300 m. Using standardized LC connectors at 850 nm, the module provides reliable 10 Gbps links for VoIP, e-learning platforms and centralized Wi-Fi controllers. Benefit: cost-efficient mid-range fiber interconnects with predictable performance and simplified maintenance for campus-wide high-bandwidth services.
In a financial services firm’s SAN deployment, storage engineers install the DEM-431XT-D-Link 10G SFP+ optical module to connect host servers to Fibre Channel switches over multi-mode fiber up to 300 m. Operating at 850 nm with LC connectors, the transceiver ensures error-free 10 Gbps data replication and backup windows. Benefit: accelerated I/O operations, improved RPO/RTO metrics and scalable storage throughput for mission-critical workloads.
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 DEM-431XT |  DMC-300SC |  DMC-1200 |  DMC-515SC |  DGE-871 | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | XFP | SFP | SFP | SFP+ | SFP+ |
| Data Rate | 10G | 1G | 10G | 10G | 10G |
| Connector Type | LC | SC | LC | LC | LC |
| Wavelength | 1310 nm | 850nm | 1310 nm | 850 nm | 850 nm |
| Transmission Distance | Long-Range | Short-Range | Long-Range | Short-Range | Short-Range |
| Fiber Type | Single-mode | Multi-mode | Single-mode | Multi-mode | Multi-mode |
| Max Distance | 80 km | 300 meters | 80 km | 300 meters | 300 meters |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Ethernet | Fiber | Fiber | Fiber |
| Power Consumption | 3.5W | 3.5W | 3.5W | 2.5W | 3.0 W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | DEM-431XT 10G XFP Optical Transceiver | DMC-300SC Digital Media Converter | DMC-1200 Optical Transceiver | DMC-515SC 10GBASE-SR SFP+ Transceiver | DGE-871 SFP+ Short-Range Transceiver |
| Height | 0.6 inches | 0.45 inches | 0.22 inches | 0.13 inches | 0.13 inches |
| Width | 1.2 inches | 1.20 inches | 0.87 inches | 0.59 inches | 0.55 inches |
| Depth | 1.8 inches | 1.70 inches | 1.1 inches | 0.87 inches | 1.0 inches |
| Weight | 0.15 lbs | 0.10 lbs | 0.10 lbs | 0.15 lbs | 0.1 lbs |
Multimode SFP plus module delivered stable 10G links across our server room. Great reliability and clean connectivity.
Installed quickly and negotiated 10G instantly. No errors or intermittent drops.
Good value 10G transceiver for short range fiber. Performs consistently under load.
Works well with our existing optics. Signal is stable and deployment was smooth.
Dependable module for rack uplinks. It has stayed stable in production.
The D-Link DEM-431XT is a 10 Gigabit SFP+ optical transceiver designed for multi-mode fiber links up to 300 meters at an 850 nm wavelength with LC duplex connectors.
This module supports multi-mode fiber transmission distances of up to 300 meters over OM3/OM4 cables.
The DEM-431XT is compatible with 50 µm multi-mode fiber (OM3/OM4) for optimal 10 Gbps performance.
It operates at an 850 nm wavelength, ideal for short-reach multi-mode fiber applications.