D-Link DEM-S2801SR 25GBASE-SR Multi-Mode SFP28 Transceiver
PRODUCT DESCRIPTION
D-Link DEM-S2801SR 25GBASE-SR Multi-Mode SFP28 Transceiver (DEM-S2801SR) - 5 Years Local Warranty
25G over Multi-Mode Fibre
The D-Link DEM-S2801SR is a 25GBASE-SR SFP28 transceiver carrying 25 Gb/s over a single lane. It uses an 850 nm laser over OM3 or OM4 multi-mode fibre with a duplex LC connector, reaching 70 m on OM3 and 100 m on OM4 — for server and top-of-rack links in the data centre.
Industry Compliant and Hot Pluggable
The module complies with IEEE 802.3by and the SFP28 MSA, runs on 3.3 V, and is hot pluggable so links can be added without taking the switch down.
Need help choosing? Email sales@sourceit.com.sg with your switch model, fibre type and link distance and we will match the right module for you.
D-Link DEM-S2801SR Datasheet — Technical Specifications
General
| Product Name | D-Link DEM-S2801SR 25GBASE-SR Multi-Mode SFP28 Transceiver |
| Part Number | DEM-S2801SR |
| Series | DEM-S28 Series 25G SFP28 Transceivers |
| Local Warranty (Singapore) | 5 years, supplied by SourceIT with a GST invoice |
Optical Interface
| Standard | IEEE 802.3by 25GBASE-SR |
| Data Rate | 25 Gb/s over a single lane |
| Connector | Duplex LC |
| Media | Multi-mode fibre 50/125 µm (OM3, OM4) |
| Wavelength | 850 nm |
| Maximum Distance | 70 m on OM3; 100 m on OM4 |
Module, Environmental & Certifications
| Form Factor | SFP28, 57.3 x 13.7 x 8.5 mm |
| Weight | 25 g |
| Power Supply | 3.3 V |
| Hot Pluggable | Yes |
| Operating Temperature | 0 to 70 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | 5 to 95% non-condensing (operating and storage) |
| Certifications | FCC Class B, ICES-003 Class B, CE Class B, VCCI Class B, LVD |
Compatibility & Software Support
Host Ports
Plugs into a 25G SFP28 slot. D-Link's datasheet does not publish a host compatibility list — send us your switch or NIC model and we will confirm before you order.
Diagnostics
Digital Diagnostic Monitoring (DDM) is not listed in D-Link's datasheet for this model.
Package Contents & DEM-S28 25G SFP28 Ordering Information
D-Link 25G SFP28 Transceivers (DEM-S28 Series)
| Model | Standard | Media | Distance | Part No. |
| DEM-S2801SR (this listing) | 25GBASE-SR, 850 nm | Multi-mode OM3/OM4, duplex LC | 70 m OM3 / 100 m OM4 | DEM-S2801SR |
| DEM-S2810LR | 25GBASE-LR, 1310 nm | Single-mode 9/125 µm, duplex LC | 10 km | DEM-S2810LR |
Ask us for current availability of either model.
Package contents are not listed in D-Link's datasheet — ask us if you need confirmation of what is in the box.
Datasheet & Downloads
| D-Link datasheet | DEM-S28 Series 25G SFP28 Datasheet (PDF) |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting DEM-S2801SR.
Frequently Asked Questions — D-Link DEM-S2801SR
How far can the DEM-S2801SR reach?
70 m on OM3 and 100 m on OM4 multi-mode fibre, per D-Link's datasheet.
What connector does it use?
Duplex LC.
Which module do I need for longer runs?
The DEM-S2810LR (25GBASE-LR) reaches 10 km over single-mode fibre.
What warranty do I get?
5 years local warranty in Singapore, supplied by SourceIT with a GST invoice.