🚀 25G Data Center Solution | Cisco SFP-25G-SR-S=

Upgrade to 25G Without Complexity — Faster, Smarter, Scalable

The Cisco SFP-25G-SR-S= is a high-performance 25GBASE-SR SFP28 optical transceiver designed for modern data centers requiring high bandwidth, low latency, and cost efficiency.

Built by Cisco Systems, this module ensures stable operation across enterprise and hyperscale environments, making it a key building block for next-generation network upgrades.

🔥 Why This Page Matters

✔ Still running 10G but facing bandwidth bottlenecks? ✔ Planning a data center upgrade but worried about cost? ✔ Need higher port density without increasing power consumption?

👉 25G is the most cost-efficient upgrade path today.

⚡ Why Upgrade from 10G to 25G?

Metric	10G	25G
Bandwidth	10 Gbps	25 Gbps (2.5x)
Cost per Gbps	Higher	Lower
Power Efficiency	Standard	Better
Future Scalability	Limited	High

👉 25G delivers more performance without redesigning your entire network.

🧠 Key Advantages of Cisco SFP-25G-SR-S=

25 Gbps high-speed transmission

850nm VCSEL technology

Up to 70m (OM3) / 100m (OM4)

Low power consumption for dense deployments

Digital Optical Monitoring (DOM) support

Hot-swappable SFP28 form factor

Fully optimized for Cisco switching platforms

🏗️ Real Data Center Use Cases

1. Leaf-Spine Architecture

25G links between leaf and spine switches

Reduces congestion in east-west traffic

2. Server-to-Switch Connectivity

Ideal for high-performance workloads

Supports virtualization & cloud computing

3. High-Density Rack Deployment

More ports, less space

Lower cabling complexity

4. 10G → 25G Migration

Reuse existing multimode fiber

Minimal infrastructure changes

🧩 Complete 25G Solution

Customers rarely buy just a module — they need a solution:

✅ Optical Modules

Cisco SFP-25G-SR-S= (short reach MMF)

Cisco SFP-25G-LR-S= (long reach SMF)

✅ Cabling

OM3 / OM4 LC-LC patch cords

MPO trunk cables

✅ Hardware

25G switches (ToR / Spine)

25G NICs

👉 One-stop sourcing = faster deployment + lower risk

📊 Technical Specifications

Parameter	Specification
Form Factor	SFP28
Data Rate	25 Gbps
Standard	25GBASE-SR
Wavelength	850 nm
Distance	70 m (OM3) / 100 m (OM4)
Connector	LC Duplex
Fiber Type	Multimode
Tx Power	-8.4 ~ 2.4 dBm
Rx Sensitivity	≤ -10.3 dBm
Power Supply	3.3V
Operating Temp	0°C to +70°C
DOM Support	Yes
Compliance	IEEE 802.3by, SFP28 MSA, RoHS

❓ FAQ

Q1: Can I use SFP-25G-SR-S= for 10G networks?

Yes, SFP28 ports are backward compatible with SFP+ in many Cisco platforms.

Q2: What fiber should I use?

OM3 or OM4 multimode fiber is recommended for optimal performance.

Q3: Is 25G better than 40G?

For most data centers, 25G offers better cost efficiency and scalability compared to 40G.

Q4: What is the typical use distance?

Up to 70m (OM3) and 100m (OM4), ideal for intra–data center connections.

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🚀 Get a Quote / Start Your 25G Upgrade

👉 Looking to deploy or upgrade your data center network?

✔ Fast delivery

✔ Project-based support

✔ Reliable supply

Contact us today to get pricing and availability.

Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Transceiver Module