The QSFP+ module is designed for use in 40GBASE Ethernet throughput up to 400m over multimode fiber (MMF) using a wavelength of 850nm via a MTP/MPO-12 connector. This transceiver is compliant with QSFP+ MSA, IEEE 802.3ba 40GBASE-SR4 and IEEE 802.3ae 10GBASE-SR standard. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP+ MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, high-performance computing networks, enterprise core, distribution layers.
FS United States FREE SHIPPING on Orders Over US$79
United States (English / $USD)
Contact Us
Click to open expanded view
00:40
Extreme 40GB-ESR4-QSFP Compatible 40GBASE-ESR4 QSFP+ 850nm 400m DOM MTP/MPO-12 MMF Optical Transceiver Module
#36457
#36457
US$65.00
FS P/N: QSFP-CSR4-40GFS P/N: QSFP-CSR4-40G
142 Sold
308 Reviews
12 Questions
1 In U.S. Warehouse, Get It By Sep 22, 2023
See more warehouse availability
Deliver to New York, 10010
Free Shipping via UPS Ground® on orders over US$79.00
Test Support
5-Year Warranty
30-Day Returns
30-Day Exchange
Specifications
Connectivity Solutions
Features
Videos
Q&A
Reviews
Resources
Extreme 40GB-ESR4-QSFP Compatible 40GBASE-ESR4 QSFP+ Optical Transceiver Module (MMF, 850nm, 400m, MTP/MPO, DOM)
Specifications
Extreme Networks Compatible
40GB-ESR4-QSFP
Vendor Name
FS
Form Factor
QSFP+
Max Data Rate
42Gbps (4x 10.5Gbps)
Wavelength
850nm
Max Cable Distance
400m@OM4
Connector
MTP/MPO-12 Male
Media
MMF
Transimitter Type
VCSEL 850nm
Receiver Type
PIN
TX Power
-7.5~0dBm
Receiver Sensitivity
<-9.9dBm
Powerbudget
2.4dB
Receiver Overload
2.4dBm
Power Consumption
≤1.2W
Extinction Ratio
>3dB
Host FEC
Supported
Bit Error Ratio (BER)
1E-12
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Protocols
40G Ethernet, SATA/SAS3, IEEE 802.3ba, MSA Compliant
Quality Testing Program
Quality Testing Program
Optical Transceivers Testing Learn more
Quality Certifications
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
40G Connectivity with Direct Connect Cabling
40G Connectivity with NIC
See more
40G Connectivity with Direct Connect Cabling
View products 40G Connectivity with NIC
View products Leaf-spine Connections
View products 10G to 40G Migration
View products 40G Structured Cabling Connections
View products 40G DWDM for 40km
View products Features
40G Connectivity for Data Center
Featured with low-power, high-density and high-speed, the QSFP+ transceiver offers a popular way to help you quickly ramp up to 40G transmission.
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
0~70°C
Specifications
Extreme 40GB-ESR4-QSFP Compatible 40GBASE-ESR4 QSFP+ Optical Transceiver Module (MMF, 850nm, 400m, MTP/MPO, DOM)
The QSFP+ module is designed for use in 40GBASE Ethernet throughput up to 400m over multimode fiber (MMF) using a wavelength of 850nm via a MTP/MPO-12 connector. This transceiver is compliant with QSFP+ MSA, IEEE 802.3ba 40GBASE-SR4 and IEEE 802.3ae 10GBASE-SR standard. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP+ MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, high-performance computing networks, enterprise core, distribution layers.
Specifications
Extreme Networks Compatible
40GB-ESR4-QSFP
Vendor Name
FS
Form Factor
QSFP+
Max Data Rate
42Gbps (4x 10.5Gbps)
Wavelength
850nm
Max Cable Distance
400m@OM4
Connector
MTP/MPO-12 Male
Media
MMF
Transimitter Type
VCSEL 850nm
Receiver Type
PIN
TX Power
-7.5~0dBm
Receiver Sensitivity
<-9.9dBm
Powerbudget
2.4dB
Receiver Overload
2.4dBm
Power Consumption
≤1.2W
Extinction Ratio
>3dB
Host FEC
Supported
Bit Error Ratio (BER)
1E-12
Commercial Temperature Range
0 to 70°C (32 to 158°F)
Protocols
40G Ethernet, SATA/SAS3, IEEE 802.3ba, MSA Compliant
Quality Testing Program
Quality Testing Program
Optical Transceivers Testing Learn more
Quality Certifications
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
40G Connectivity with Direct Connect Cabling
40G Connectivity with NIC
See more
40G Connectivity with Direct Connect Cabling
View products 40G Connectivity with NIC
View products Leaf-spine Connections
View products 10G to 40G Migration
View products 40G Structured Cabling Connections
View products 40G DWDM for 40km
View products Features
40G Connectivity for Data Center
Featured with low-power, high-density and high-speed, the QSFP+ transceiver offers a popular way to help you quickly ramp up to 40G transmission.
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
0~70°C
Videos
Questions & Answers
All (12)Product Recommendation (3)Juniper EX Series (2)Warranty (2)Cable Type (1)Compatibility (1)Compatible Brand (1)Connectors (1)Lead Time (1)Matching Product (1)Transmission Distance (1)
Q:
by E***a on 05/20/2023
A: 
Helpful 0 
Comment0
by FS.com on 05/23/2023
Helpful 0 Comment0Q:
by S***s on 05/15/2023
A: Helpful 0 Comment0
by FS.com on 05/18/2023
Helpful 0 Comment0Q:
by D***n on 04/09/2023
A: Helpful 0 Comment0
by FS.com on 04/12/2023
Helpful 0 Comment0Q:
by M***n on 04/07/2023
A: Helpful 0 Comment0
by FS.com on 04/13/2023
Helpful 0 Comment0Q:
by L***s on 03/11/2023
A: Helpful 0 Comment0
by FS.com on 03/13/2023
Helpful 0 Comment0Q:
by P***e on 02/21/2019
A: Helpful 0 Comment0
by N***n on 02/22/2019
Helpful 0 Comment0See all questions
Customer Reviews
A***e
Taiwan, China
September 04, 2023
Good. Fast. Package Completed.
Verified Purchase
Helpful 0L***l
Cuba
August 03, 2020
Having bought their 10G modules many times and these 40G modules are also satisfactory. Really plug and play. The whole connection is quite easy and stable. I have nothing to complain about. My account manager has been explained very clearly. I trust their team very much.