10/25G SFP28 SFP-10/25G-CSR-S 400m 850nm Duplex LC/UPC Module, Cisco

Designed for 25G Ethernet, data center interconnect and 5G transport networks, the 10/25G SFP28 SFP-10/25G-CSR-S 400m 850nm Duplex LC/UPC Module, Cisco provides 25Gbps throughput in a SFP28 form factor. It operates at 850nm over MMF through a Duplex LC connector and supports link lengths up to 400m@OM4/300m@OM3. The module meets SFF-8472, SFF-8024, SFF-8431, SFF-8432, IEEE802.3by and includes digital diagnostic monitoring for live status readout.
Product Highlights
- SFP28 form factor, 25Gbps data rate
- Wavelength: 850nm
- Connector: Duplex LC
- Reach: up to 400m@OM4/300m@OM3
- Fiber media: MMF
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | SFP-10/25G-CSR-S |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP28 |
| Max Data Rate | 25Gbps |
| Wavelength | 850nm |
| Max Cable Distance | 400m@OM4/300m@OM3 |
| Connector | Duplex LC |
| Media | MMF |
| Transmitter Type | VCSEL |
| Receiver Type | Pin |
| TX Power | -6.4~2.4dBm |
| Receiver Sensitivity | <-6dBm |
| Power Budget | -0.4dB |
| Receiver Overload | 2.4dBm |
| Power Consumption | ≤1W |
| Extinction Ratio | >2dB |
| CDR (Clock and Data Recovery) | TX and RX Built-in CDR |
| FEC Function | Support RS-FEC |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432, IEEE802.3by |
| Core Size | 50/125 µm |
| Packaging Technology | COB Packaging |
| DOM | Supported |
Applications
Built for 25G Ethernet, data center interconnect and 5G transport networks, this SFP28 module carries 25Gbps over MMF up to 400m@OM4/300m@OM3 per link. With its Duplex LC optical interface, the module works directly with the MMF infrastructure already installed in most facilities. It is interoperable with Cisco platforms and replaces the Cisco part SFP-10/25G-CSR-S directly.
Standards and Compatibility
On the compatibility side, this unit is the practical equivalent of the Cisco part SFP-10/25G-CSR-S and works in Cisco systems out of the box. Standards compliance covers SFF-8472, SFF-8024, SFF-8431, SFF-8432, IEEE802.3by.
Ordering Information
To order, quote SFP-25GMCSR-85 together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
Worldwide Delivery
We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.
Reliability Control
From incoming component inspection to final burn-in, quality is controlled at each step of production. Finished units are verified on real networking equipment in our compatibility lab, and test records are kept per batch so that any field question can be traced back quickly.
