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SFP-25G-SL – SFP28 – 850nm 30m – Transceiver Module
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SFP-25G-SL Description
SFP-25G-SL is a Cisco 25GBASE-SL SFP28 optical transceiver designed for ultra-short-reach data center connections. Supporting 25Gbps data rates over multimode fiber, this module reaches up to 20 meters on OM3 and 30 meters on OM4/OM5 fiber. With its compact SFP28 form factor, 850nm wavelength, and standard LC duplex connector, SFP-25G-SL is ideal for server access, short-run switch interconnects, and high-density deployments where cable lengths are minimized. Also referred to as Cisco 25G SL SFP28, it requires RS-FEC for reliable operation and is hot-swappable for maximum network flexibility.
Product Highlights
Data Rate
Wavelength
Max. Distance
Key Features
- Best Use Case:
- Ultra-short server-to-switch or switch-to-switch links within the same rack or neighboring racks in high-density data centers.
- Ideal for cloud service providers or enterprises with blade server chassis, hyper-converged infrastructure, or modular data center pods.
- Frequently used where maximum port density, low power, and simple cable management are critical.
- Functionality:
- Single-rate 25G operation over OM3/OM4 multimode fiber.
- Requires RS-FEC for reliable 25G connectivity.
- Ultra-low latency and minimal insertion loss due to short reach.
- Lowest cost per port for short fiber runs (20m OM3, 30m OM4/OM5).
- Typical Industries:
- Cloud data centers, financial services, high-frequency trading, enterprise private clouds, virtualization clusters.
Applications Scenarios
Ultra-Short-Range 25G Server-to-Switch Links
Perfect for connecting servers and switches within the same rack or adjacent racks in modern data centers, where cable runs are under 30 meters.
High-Density Blade Server Environments
Used in environments with blade server chassis or modular data center pods, where maximum port density and minimal cabling are crucial.
Hyper-Converged & Virtualization Deployments
Suitable for clusters running virtualization, hyper-converged infrastructure, or private cloud where ultra-short, low-latency links are required.
Model comparison
|
Parameter |
SFP-25G-SL |
SFP-10/25G-CSR-S | |
|---|---|---|---|
|
Form Factor |
SFP28 |
SFP28 |
SFP28 |
|
Data Rate |
25 Gbps |
25 Gbps |
10/25 Gbps |
|
Wavelength |
850 nm |
850 nm |
850 nm |
|
Fiber Type |
MMF |
MMF |
MMF |
|
Max. Distance |
20m (OM3)/30m (OM4) |
70m (OM3)/100m(OM4) |
300m (OM3)/400m(OM4) |
|
Power Consumption |
1.2 W |
1.2 W |
1.2 W |
|
Operating Temp. |
0~70°C |
0~70°C |
0~70°C |
|
FEC Requirement |
RS-FEC required |
RS-FEC required |
RS-FEC recommended |
|
Hot-swappable |
Yes |
Yes |
Yes |
|
Connector |
LC Duplex |
LC Duplex |
LC Duplex |
|
Typical Use Case |
Ultra-short links |
Short links |
Extended reach |
Platform Compatibility
SFP-25G-SR-S is compatible with a wide range of Cisco devices equipped with SFP28 ports, including but not limited to:
Safety & Compliance
This product meets the following standards and compliance requirements:
- IEEE Standards:
- IEEE 802.3by (25GBASE Ethernet)
- IEEE 802.3cc (25GBASE over SMF)
- SFP28 MSA:
- SFF-8402: SFP+ 28 Gb/s 1x Pluggable Transceiver Solution
- SFF-8472: Diagnostic Monitoring Interface for Optical Transceivers
- Safety:
- Laser Class 1 (IEC 60825-1)
- Laser Class 1 (21CFR-1040 LN#50 7/2001)
- Environmental:
- RoHS 6 compliant
- Cable jacket of SFP copper modules is UL E116441 Compliant
- ELV (End-of-Life Vehicle) compliant for SFP copper cables
- Product Material Content:
- Conforms to WEEE regulations (electronic waste and recycling)
- Cisco Takeback and Reuse Program supported
Specifications
| Parameter | Value |
|---|---|
| Product Model | SFP-25G-SL |
| Form Factor | SFP28 |
| Data Rate | 25 Gbps |
| Wavelength | 850 nm |
| Interface | LC Duplex (PC/UPC) |
| Cable Type | MMF (OM3/OM4/OM5) |
| Max. Distance | 20m (OM3) / 30m (OM4/OM5) |
| Transmit Power (max/min) | +2.4 dBm / -8.4 dBm |
| Receive Power (max/min) | +2.4 dBm / -10.3 dBm |
| Power Consumption | 1.2 W |
| Operating Temperature | 0 to 70°C (32 to 158°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| FEC Requirement | RS-FEC required |
| Connector | Dual LC/PC |
| Compliance | IEEE 802.3by, SFF-8402, SFF-8472, RoHS 6 |
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