The Cisco SFP-25G-ER40-S-I compatible SFP28 transceiver provides 25GBase-ER throughput up to 40km over single mode fiber (SMF) using a wavelength of 1310nm via an LC duplex connector. Featuring low power consumption, high speed, this 25G transceiver is ideal for 25G Ethernet, data center, and 5G Wireless Network, suitable for both outdoor and indoor deployments. It is fully compliant with the SFP28 MSA, CPRI and eCPRI standard.

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Cisco SFP-25G-ER40-S-I Compatible 25GBASE-ER SFP28 1310nm 40km Duplex LC SMF DOM Industrial Optical Transceiver Module
#100085
#100085
US$279.00
FS P/N: SFP28-25GER-31-IImport Fees Included
FS P/N: SFP28-25GER-31-I
228 Sold
11 Reviews
5 Questions
Transceiver Models:
13 In Global Warehouse, Get It By Dec 11, 2023
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Deliver to New York, 10010
Free Shipping via Fedex International Priority
Test Support
5-Year Warranty
30-Day Returns
30-Day Exchange
Specifications
Connectivity Solutions
Features
Videos
Q&A
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Resources
Cisco SFP-25G-ER40-S-I Compatible 25GBASE-ER SFP28 Industrial Optical Transceiver Module for Data Center and Telecom (SMF, 1310nm, 40km, LC, DOM)
Specifications
Cisco Compatible
SFP-25G-ER40-S-I
Vendor Name
FS
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1310nm
Max Cable Distance
30km
Connector
Duplex LC
Media
SMF
Transmitter Type
DML 1310nm
Receiver Type
APD
TX Power
-0.5~6.5dBm
Receiver Sensitivity
<-19.5dBm
Powerbudget
19dB
Receiver Overload
-4dBm
Power Consumption
≤2W
Extinction Ratio
4dB
DDM/DOM
Supported
Industrial Temperature Range
-40 to 85°C (-40 to 185°F)
CDR
TX & RX Built-in CDR
FEC Function
Not Support
Protocols
SFF-8472, SFF-8432, SFF-8431
Warranty
5 Years
Core Size
G.652
Packaging Technology
BOX Packaging
Quality Testing Program
Quality Testing Program

Optical Transceivers Testing Learn more
Quality Certifications
To get the detailed certification, please go to the Product Compliance Status for download.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
Connectivity Solutions
25G Connectivity with Direct Connect Cabling

5G Fronthaul Dual Fiber Network with Six Fiber

25G Connectivity with Direct Connect Cabling

5G Fronthaul Dual Fiber Network with Six Fiber

Features
25G Connectivity for Data Center
Featured with low-power, high-density and high-speed, the SFP28 transceiver offers a popular way to help you quickly ramp up to 25G transmission.
Leading Performance and Quality for 25G
Built-in Maxim Chip, the SFP28 25G transceiver offers high-speed, and low-power in 25G links. Equipped with individually designed BOX packaging.
Maxim Chip
Stable Transmission
≤2W
Low Power Consumption
BOX Packaging
Great Airtightness
Tested in Host Devices for Proven Interoperability
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations.

Comprehensive Testing Increases Reliability
Qualified through a rigorous process with advanced equipments to ensure you get the high quality and reliable optics.
Optical Spectrum Test
No Packet Loss & CRC
Eye Pattern Test
Mask Margin >20%
Bit Error Rate Test
BER 1E-12
Temperature Test
-40~85°C
Enable Seamless Connectivity for Your Network
Reconfiguring the transceiver to work with different brands, FS BOX offers flexibility in stock costs.
Center Wavelength | 850nm | 1310nm | 1310nm | 1310nm | 1310nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max.) | 100m@OM4/70m@OM3 | 10km | 2km | 20km | 30km |
Transmitter Type | VCSEL | DFB | DFB | DFB | DML |
Media | MMF | SMF | SMF | SMF | SML |
Packaging Technology | COB Packaging | BOX Packaging | BOX Packaging | BOX Packaging | BOX Packaging |
Chip | Macom | Macom | Semtech | Maxim | Maxim |
Application | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network |
Videos
Specifications
Cisco SFP-25G-ER40-S-I Compatible 25GBASE-ER SFP28 Industrial Optical Transceiver Module for Data Center and Telecom (SMF, 1310nm, 40km, LC, DOM)
The Cisco SFP-25G-ER40-S-I compatible SFP28 transceiver provides 25GBase-ER throughput up to 40km over single mode fiber (SMF) using a wavelength of 1310nm via an LC duplex connector. Featuring low power consumption, high speed, this 25G transceiver is ideal for 25G Ethernet, data center, and 5G Wireless Network, suitable for both outdoor and indoor deployments. It is fully compliant with the SFP28 MSA, CPRI and eCPRI standard.
Specifications
Cisco Compatible
SFP-25G-ER40-S-I
Vendor Name
FS
Form Factor
SFP28
Max Data Rate
25.78Gbps
Wavelength
1310nm
Max Cable Distance
30km
Connector
Duplex LC
Media
SMF
Transmitter Type
DML 1310nm
Receiver Type
APD
TX Power
-0.5~6.5dBm
Receiver Sensitivity
<-19.5dBm
Powerbudget
19dB
Receiver Overload
-4dBm
Power Consumption
≤2W
Extinction Ratio
4dB
DDM/DOM
Supported
Industrial Temperature Range
-40 to 85°C (-40 to 185°F)
CDR
TX & RX Built-in CDR
FEC Function
Not Support
Protocols
SFF-8472, SFF-8432, SFF-8431
Warranty
5 Years
Core Size
G.652
Packaging Technology
BOX Packaging
Quality Testing Program
Quality Testing Program

Optical Transceivers Testing Learn more
Quality Certifications
To get the detailed certification, please go to the Product Compliance Status for download.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
Connectivity Solutions
25G Connectivity with Direct Connect Cabling

5G Fronthaul Dual Fiber Network with Six Fiber

25G Connectivity with Direct Connect Cabling

5G Fronthaul Dual Fiber Network with Six Fiber

Features
25G Connectivity for Data Center
Featured with low-power, high-density and high-speed, the SFP28 transceiver offers a popular way to help you quickly ramp up to 25G transmission.
Leading Performance and Quality for 25G
Built-in Maxim Chip, the SFP28 25G transceiver offers high-speed, and low-power in 25G links. Equipped with individually designed BOX packaging.
Maxim Chip
Stable Transmission
≤2W
Low Power Consumption
BOX Packaging
Great Airtightness
Tested in Host Devices for Proven Interoperability
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations.

Comprehensive Testing Increases Reliability
Qualified through a rigorous process with advanced equipments to ensure you get the high quality and reliable optics.
Optical Spectrum Test
No Packet Loss & CRC
Eye Pattern Test
Mask Margin >20%
Bit Error Rate Test
BER 1E-12
Temperature Test
-40~85°C
Enable Seamless Connectivity for Your Network
Reconfiguring the transceiver to work with different brands, FS BOX offers flexibility in stock costs.
Center Wavelength | 850nm | 1310nm | 1310nm | 1310nm | 1310nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max.) | 100m@OM4/70m@OM3 | 10km | 2km | 20km | 30km |
Transmitter Type | VCSEL | DFB | DFB | DFB | DML |
Media | MMF | SMF | SMF | SMF | SML |
Packaging Technology | COB Packaging | BOX Packaging | BOX Packaging | BOX Packaging | BOX Packaging |
Chip | Macom | Macom | Semtech | Maxim | Maxim |
Application | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network | 25G Ethernet/ Data Center/ 5G Wireless Network |
Videos
Questions & Answers
All (5)Application (1)Application Environment (1)CDR (1)Matching Cables (1)Product Comparison (1)
Customer Reviews
D***y
United States
April 24, 2023
Good news! I got the parcel today and all is well! I’m officially operating at 10Gb! You’ve got some fantastic products and unbeatable customer service.
Verified Purchase
Helpful 4
Comment 0R***n
United States
March 11, 2023
I really appreciate your help and the high-quality products FS provides.
Verified Purchase
Helpful 4
Comment 0D***y
United States
February 23, 2023
You're absolutely amazing. Thank you so much for the fantastic service!
Verified Purchase
Helpful 4
Comment 0See all reviews
Resources
US$279.00
13 In Global Warehouse