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DEM-431XT
D-Link 10G SFP+ optical module, multi-mode, 300 meters, wave...
Federal agencies and Fortune 500 operations source through ORM Systems.
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Enterprise Clients
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
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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Request bulk order quote for DEM-431XT for additional pricing. Browse the full D-Link Transceivers series or explore all D-Link products.
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 |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
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.
The module uses standard LC duplex connectors for secure, low-loss fiber connections.
Yes, the DEM-431XT supports hot-plug insertion and removal without powering down the system.
The DEM-431XT supports 10 Gbps full-duplex data transmission.
This SFP+ module is MSA-compliant and interoperable with most 10G SFP+-capable network devices.
The module operates reliably between 0 °C to 70 °C (32 °F to 158 °F).
Typical power consumption is approximately 1 W, ensuring energy-efficient operation.
The module meets IEEE 802.3ae 10GBASE-SR standards and is CE, FCC and RoHS compliant.
The package includes one D-Link DEM-431XT SFP+ transceiver and a dust cap for the LC connector.
Insert the DEM-431XT into an available SFP+ port until it clicks, then connect your LC fiber cables.
Yes, its short-reach design is ideal for high-density 10G links in data centers, server rooms, and enterprise campuses.
No firmware updates are required; it operates natively under SFP+ hot-plug specifications.
The DEM-431XT comes with D-Link’s standard lifetime warranty for peace of mind.
United States
