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BlueOptics DEM-431XT-BO D-Link DEM-431XT Compatible SFP+ Transceiver 10GBASE-SR 850 nm LC Multimode up to 300 m DDM

Brand:
BlueOptics
BlueOptics DEM-431XT-BO / Fiber optic / 10000 Mbit/s / SFP+ / Sil
BlueOptics DEM-431XT-BO D-Link DEM-431XT Compatible SFP+ Transceiver 10GBASE-SR 850 nm LC Multimode up to 300 m DDM
€39.27 inc. VAT
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DEM-431XT-BO
€33.00
€39.27 inc. VAT
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Product Code
04:546746
EAN Code
4063232625935
Manufacturer
BlueOptics

Quick Specs

Standard
10GBASE-SR · 10 Gbps
Fibre & Reach
Multimode · up to 300 m
Coded As
D-Link DEM-431XT
Diagnostics
DDM · SFF-8472
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BlueOptics DEM-431XT-BO — D-Link DEM-431XT Compatible 10G SR SFP+

10 Gbps10GBASE-SRD-Link DEM-431XT codedUp to 300 m

The BlueOptics DEM-431XT-BO is a 10 Gbit SFP+ transceiver for multimode fibre, reaching up to 300 m at 850 nm over a duplex LC connection, with digital diagnostics. It is programmed with the coding of the D-Link DEM-431XT, so D-Link switches identify it as that part. BlueOptics builds it on its BO35J856S3D hardware and backs it with a 5-year functional warranty. In practice, multimode optics are the cheaper choice for links inside one building: most server rooms and floor risers already carry OM3 or OM4 fibre, and the module plus a short patch cord is all a port needs. Before you order, check the fibre grade printed on the cable jacket and the real length of the run, including patch panels.

Compatibility — check before buying:
It is coded as a D-Link DEM-431XT. D-Link quotes up to 550 m for its own original, but BlueOptics publishes 300 m for this module — plan the link on 300 m. BlueOptics sells the sibling DEM-431XT-DD coding as a separate article. It needs multimode fibre (50/125 µm): it will not carry the link over the yellow single-mode fibre used between buildings. BlueOptics publishes 300 m without splitting it by OM grade, so check older OM1/OM2 runs with us. Keep the dust cap on until you connect the fibre, and clean both connector ends before every mating — dirt is the most common cause of a link that will not come up. Not sure? Send us your device model and the cable run and we check it before you order.

Best For

✓ D-Link DGS and DXS switch uplinks
✓ 10G uplinks inside one building
✓ Server and storage links in the data room
✓ Replacing a failed D-Link DEM-431XT module
✓ Spare optics at a lower cost than the original
✓ Networks that want a 5-year module warranty

Key Features

 
Coded as D-Link DEM-431XT
Programmed with the D-Link DEM-431XT coding, so the host treats it as the original part instead of an unsupported third-party optic.
 
Multimode fibre, short reach
Built for the short runs inside a building or data room over OM-grade multimode fibre. Reach depends on the fibre grade — check what is actually in your walls before you plan a link.
 
Monitoring you can read
Digital diagnostics (SFF-8472) let the host report temperature, laser power and received light, so a dirty connector or a failing link shows up before users call.
 
Hot-swappable
Modules plug into a live port without shutting the switch down, so a link can be added or replaced during working hours. Seat it until it clicks and use the latch to remove it.

Technical Specifications

Identification
Brand BlueOptics (CBO GmbH)
Model Compatible D-Link DEM-431XT SFP+ 10GBASE-SR (BO35J856S3D)
Part Number DEM-431XT-BO
EAN / GTIN 4063232625935
Pack Size Single unit
BlueOptics Hardware BO35J856S3D
Coded As D-Link DEM-431XT
Interface
Form Factor SFP+
Standard 10GBASE-SR (IEEE 802.3ae)
Data Rate 10 Gbps
Connector Duplex LC
Optics & Reach
Wavelength 850 nm (VCSEL laser)
Fibre Multimode 50/125 µm
Reach Up to 300 m (BlueOptics does not split this by OM grade)
Tx Power −6 to −1 dBm
Rx Sensitivity −10 dBm (overload +0.5 dBm)
Environment & Power
Operating Temperature 0 to 70 °C (commercial)
Supply 3.3 V, max. 250 mA
Diagnostics (DDM) Yes, SFF-8472
Hot-Swap Yes
Compatibility
Designed For D-Link switches with SFP+ ports that accept the D-Link DEM-431XT
Link Partner Another 10GBASE-SR module on multimode fibre, of any brand
In the Box
Included 1 module
Not Included Fibre patch cords and cleaning tools
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term BlueOptics (CBO GmbH) publishes a 5-year functional warranty on this transceiver, plus lifetime technical support. Singular’s direct warranty is 1 year; beyond that we assist you with the manufacturer’s warranty process for its full duration.

Frequently Asked Questions

Is it the same as the original D-Link DEM-431XT?
It is a compatible module: the same 10GBASE-SR standard at 850 nm over multimode fibre, programmed with the D-Link DEM-431XT coding so the host accepts it. BlueOptics publishes up to 300 m and backs it with its own 5-year functional warranty instead of the original maker’s.
Does it reach 550 m like the D-Link original?
BlueOptics publishes this module for up to 300 m on multimode fibre, while D-Link quotes 550 m for its own DEM-431XT. Plan the run on 300 m, including patch panels, or send us the fibre details.
Are fibre patch cords included?
No. You get 1 module. The patch cord for the Duplex LC connector, a matching module for the far end of the link and a fibre cleaning tool are bought separately. Tell us the distance and the fibre type and we quote the right cord.
Will it work in a switch from another brand?
BlueOptics programs each module with the coding of the original part it replaces. A host from another brand may reject it or show an “unsupported transceiver” message when the coding does not match — send us the switch or server model and we check it before you order.
Singular Expert Insight
We offer the DEM-431XT-BO for D-Link networks that need 10G over multimode inside a building at a lower cost than the original, with a 5-year module warranty. For runs between buildings on single-mode fibre, ask us for the LR coding instead. Every order is backed by Singular’s local support in Cyprus — if a link will not come up, send us the port status and we help you find out whether it is the module, the cable or the configuration. Browse all transceivers and DAC cables or the switches they plug into.

Buyer’s Guide

Buy it if

You need 10G over multimode up to 300 m on a D-Link switch that accepts DEM-431XT.

Skip it if

Your run is longer than 300 m, your fibre is single-mode, or the switch is another brand.

Also consider

D-Link DEM-431XT, the original part.

Features - BlueOptics - DEM-431XT-BO

More Details
Product Code
04:546746
EAN Code
4063232625935
Manufacturer
BlueOptics
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