SFP-25G-SL – 25GBASE-SR/SL SFP28 – 850nm 30m MMF Transceiver
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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
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.
Application Scenarios
Perfect for connecting servers and switches within the same rack or adjacent racks in modern data centers, where cable runs are under 30 meters.
Used in environments with blade server chassis or modular data center pods, where maximum port density and minimal cabling are crucial.
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 |
Get More Information
Need pricing, stock, or shipping details for the SFP-25G-SL ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
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What distance does SFP-25G-SL cover on multimode fiber?
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Why does SFP-25G-SL mention RS-FEC in planning?
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Is SFP-25G-SL the same reach class as SFP-25G-SR-S?
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Which cabling layout fits SFP-25G-SL?
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Can SFP-25G-SL replace a longer 25G SR optic?
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Does SFP-25G-SL solve 10G to 25G migration?
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What host-port check matters before ordering SFP-25G-SL?
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Where does SFP-25G-SL get misapplied?
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