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AddOn's industry-standard SFP+ is a hot-swappable input/output device that plugs into a Gigabit Ethernet slot, linking the port with the fiber-optic network. AddOn's transceivers (GBIC, SFP, XFP and XENPAK) are 100% compliant for all of our networking product lines. AddOn transceivers are factory loaded with OEM specific configuration data required for networking compliance. These transceivers initialize and perform identically to the OEM transceivers and can be mixed and deployed with other OEM or 3rd party transceivers, for seamless network performance.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Website
- Support Phone: 1-877-292-1701
- Support Email: tech_support@addoncomputer.com
- Support Website
- View other products from AddOn
The AddOn D-Link DEM-431XT-DD-compatible SFP+ transceiver provides one LC 10GBase-SR network connection for network administrators upgrading compatible equipment with a fiber-optic link.
Recommended For
- Network administrators connecting 10GbE switches in data centers or enterprise wiring closets over multimode fiber.
- IT teams adding or replacing a D-Link-compatible optic in an SFP+ port for an existing duplex-LC multimode-fiber run; the listed reach is up to 300 m, depending on the fiber type.
- Network operators who want Digital Diagnostics Monitoring to check optic readings such as transmit and receive power, temperature, and voltage.
- Technicians adding or replacing a supported transceiver without powering down the switch, using its hot-pluggable design.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Adding a 10GBase-SR fiber link to compatible network equipment using an LC connection |
| Network Interface | 1 x 10GBase-SR SFP+ Ethernet interface with LC connection |
| Brand And Model | AddOn - Network Upgrades, model DEM-431XT-DD-AO |
| Physical Specifications | Item dimensions: 4.4 x 1.7 x 0.8 inches; item weight: 0.05 pounds |
| Package Details | Quantity: 1; package dimensions: 5 x 2 x 1 inches; package weight: 0.02 grams |
| California Proposition 65 | Warning type: cancer and reproductive |


