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40G QSFP+ ER4 CWDM 40km Transceiver

1550nm 1G fiber optic transceiver

The Cisco 40GBASE-ER4 QSFP Module supports link lengths up to 40km over G.652 single-mode fiber with duplex LC connectors. The 40GE or OTU3 signal is carried over four wavelengths in the 1310nm range. Multiplexing and demultiplexing of the four wavelengths are managed within the device.

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G694.2. It contains a duplex LC connector for the optical interface and a 148-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module.The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.



Application40G Ethernet/ 40G Infiniband
Operating Temperature0℃~ +70℃
Voltage Supply3.3V
BrandPrimusIT, OEM



1. Compliant with 40G Ethernet IEEE802.3ba and

2. 40GBASE-ER4 Standard

3. QSFP+ MSA compliant

4. Compliant with QDR/DDR Infiniband data rates

5. Up to 11.2Gbps data rate per wavelength

6. 4 CWDM lanes MUX/DEMUX design

7. Up to 40km transmission

8. Operating case temperature: 0~70C

9. Maximum 3.5W operation power

10. RoHS compliant




40G Ethernet

Infiniband interconnects

40G Telecom connections

Data Centers



Competitive advantage:


1. Excellent quality and 1-3 years warranty

2. Competitive pricing

3. Full compatible (CISCO/HP/Juniper/H3C/Extreme…)

4. OEM/ODM Customized label

5. Keep stock,Fast delivery

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