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SFP-25G-SR-MM850 - 25G SFP28 SR 850nm 100m MMF LC Transceiver
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High-performance 25G SFP28 SR optical transceiver module, 850nm wavelength, supporting up to 100m over OM4 MMF with duplex LC connector. Ideal for data center and enterprise networks.
Key Features
High-Speed 25G Connectivity
Supports 25.78 Gbps data rate, compliant with IEEE 802.3by and SFF-8402 standards for next-generation network speeds.
Extended Reach
Up to 100m over OM4 multimode fiber (70m over OM3), providing flexible deployment options within data centers.
Digital Diagnostics (DDM/DOM)
Real-time monitoring of optical parameters via I2C interface, compliant with SFF-8472 for proactive network management.
Low Power Consumption
Operates at ≤3.3W, reducing energy costs and heat dissipation in high-density environments.
Specifications
| Model | SFP-25G-SR-MM850 |
| Brand | H3C |
| Form Factor | SFP28 |
| Max Data Rate | 25.7813 Gbps |
| Wavelength | 850nm |
| Connector | Duplex LC |
| Media | MMF |
| Max Distance | 100m (OM4) / 70m (OM3) |
| Transmitter Type | VCSEL |
| Receiver Type | PIN |
| TX Power | -8.4 to +2.4 dBm |
| Receiver Sensitivity | < -10.3 dBm |
| Power Budget | 1.9 dB |
| Receiver Overload | 2.4 dBm |
| Extinction Ratio | >2 dB |
| Power Consumption | ≤3.3W |
| DDM/DOM | Supported |
| FEC Support | RS-FEC, FC FEC |
| Operating Temperature | 0°C to +70°C |
| Protocols | SFF-8472, SFF-8024, SFF-8431, SFF-8432 |
| Warranty | 5 Years |
Key Benefits
- Seamless Compatibility – Fully compatible with H3C switches and MSA compliant, ensuring interoperability with major brands.
- Reliable Performance – Robust design with DDM support for real-time monitoring, minimizing network downtime.
- Cost-Effective Upgrade – Enables 25G connectivity without replacing existing MMF infrastructure, reducing total cost of ownership.
Frequently Asked Questions About Product
If these questions do not dispel your doubts, please contact us
Where do your products come from?
All of our products from Cisco Disti,Cisco partner, Cisco distribution directly.
How to ship the goods?
Datadirect cooperation with FEDEX,UPS & DHL and air shipment. Orders can be tracked by express Tracking number. Air shipment will supply the B/L.
Can l use my own freight account to ship my order?
Sure, we can use your accounts to ship goods without any issue.
What's your warranty for the products you sell?
Please refer below our warranty terms.
https://www.datadirectglobal.com/pages/product-warranty-policy
Datadirect offers for all items on the website.
Cisco/Juniper:
1 year warranty for new licensed products; 3 months warranty for used, REF, etc.
Aruba:
Generally provide Limited Lifetime Warranty
PS: Limited Lifetime Warranty means the machine is damaged during normal use, datadirect can provide free warranty service. However, we cannot provide warranty for damage caused by human or violent factors.
If you need to apply for a product warranty, you need to send the defective product back to us (suzhou China). The shipping cost of the defective product and the shipping cost of the spare parts will be borne by datadirect.
The shipping cost for the return is: first receipt address to our warehouse. The shipping cost of the spare parts is from our warehouse to the first delivery address.
I want to buy a licence/service for a device, can I use it properly locally?
Fortinet, Meraki branded equipment licences purchased from us can be used globally, Cisco service needs to be confirmed by contacting us
How Hardware Procurement Works
A straightforward four-step process. No hidden costs, no ambiguous timelines. From your first inquiry to delivery, you know exactly what happens next.
Submit Your Requirement
Send us your hardware spec, model numbers, and quantity via email or WhatsApp. The more detail, the faster we can quote.
Receive a Detailed Quote
We respond within 24 hours with a complete quote - itemized pricing, lead time, and logistics estimate. No vague estimates.
Confirm and Pay
Approve the quote, complete payment or confirm agreed credit terms. We then place the order with our verified supply network.
Delivery and Handover
We manage logistics end-to-end and provide tracking. Delivery comes with full documentation and post-delivery support.
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From Warehouse to Delivery: Ensuring Accuracy and Speed. Our order fulfillment process guarantees that your order is handled with the utmost care and efficiency.

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