CISCO Modules
Cisco SFP-25G-SR-S= 25GBASE-SR SFP28 Transceiver Module
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🚀 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.