40G QSFP Transceiver SMF CWDM λ1271-1331nm 20Km LC Optical Transceiver Module

Basic Information
Place of Origin: Shenzhen, China
Brand Name: Gigaopto
Certification: CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Model Number: GTQ-B13A4-20DC
Minimum Order Quantity: 1
Price: negotiable
Packaging Details: Static bag, Plastic PVC Pack, Retail box
Delivery Time: 1-5 work days
Payment Terms: T/T, L/C, Western Union
Supply Ability: 5,000pcs/month
Detail Information
Product Name: 40G ELR4 Speed: 40GBase
Wavelength: CWDM λ1271-1331nm Temperature: Com
Fiber Type: SMF Reach: 20km
OEM/ODM: Supported Connector: LC
Highlight: QSFP+ 20km 40GBase-eLR4 , 40G ELR4 20km
High Light:

40G QSFP Transceiver


QSFP 40G Transceiver


QSFP CWDM Transceiver

Product Description

QSFP 40G SMF λ1271-1331nm CWDM 20Km LC Optical Transceiver Module for Ethernet and Data Center DOM



  • 4 CWDM un-cooled DFB lasers, using ITU G.694.2 wavelength grid at 1271, 1291, 1311, and 1331 nm, with MUX. High Sensitivity PIN-TIA with DEMUX.
  • Up to 20km reach over standard single mode fiber
  • Hot pluggable electrical interface
  • Power consumption<3.5W
  • 40Gbps CWDM 20km QSFP+ Optical Transceiver
  • Transmission data rate up to 11.2Gbps per channel
  • Operating case temperature 0°C to +70°C
  • 3.3V power supply
  • RoHS 6
  • QSFP+ MSA compliant ¨Compliant to IEEE 802.3ba 40GBASE-LR4¨
  • Supports Digital Diagnostic Monitoring



The Gigaopto's GTQ-B13A4-20DC QSFP 40G eLR4 Optical Transceiver Module is designed for use in 40GBASE Ethernet throughput up to 20km over single mode fiber (SMF) using a wavelength of 1310nm via duplex LC connectors.

This transceiver is compliant with QSFP+ MSA and IEEE 802.3ba 40GBASE-LR4 and OTU3 C4S1-2D1 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 and distribution layer applications.





Form Factor QSFP+ Data Rate (Gb/s) 41.2Gb/s (4×10.3Gb/s)
Wavelength 1310nm Fiber Transmission 20km
Connector Duplex-LC Fiber Type SMF
TX Power per Lane -4.5~2.3dBm RX Sensitivity per Lane <-12.5dBm
Optical budget 8dB Overload >3.3dBm
Power Consumption ≤3.5W Extinction Ratio >3.5dB
DDMI Yes Temperature Range 0 to 70°C (32 to 158°F)
OEM/ODM Supported Warranty 3-years
Protocols QSFP+ MSA, SFF-8436
Compliance IEC/EN 61000-4-2,IEC-60825,FDA 21CFR 1040.10 and 1040.11, RoHS






Gigaopto manufactures and stocks a full range of optical transceivers up to 100G. All of our optical transceiver modules are quality-tested for compatibility with the target switch environment and are 100% compatible with major brands such as Cisco, Brocade, HP, Juniper, HW, Alcatel-Lucent, Extreme, Arista, Force10, D-link, 3Com, etc. and offer a 3-year warranty.

For this QSFP 40G eLR4 P/N:GTQ-L27A4-20DC optical transceiver, please refer to the P/N correspondence table. If you need more compatibility, please don’t hesitate to let us know.


Corresponding Compatible Brand/Part Number
Brand Part Number Brand Part Number
Gigaopto GTQ-M13A4-20DC Arista QSFP-LR4-40G-20
Cisco QSFP-LR4-40G-20 Juniper QSFP-LR4-40G-20
H3C QSFP-LR4-40G-20 HW QSFP-LR4-40G-20
Dell QSFP-LR4-40G-20 Brocade QSFP-LR4-40G-20
Extreme QSFP-LR4-40G-20 Mellanox QSFP-LR4-40G-20
Intel QSFP-LR4-40G-20    



For More of our 40GBASE Transceiver Series, please refer to the following form


P/N Description Reach TX/RX TX Power (dBm) Rx Sens. (dBm) Connector
GTQ-M85A4-02DC 40G SR4 150m 850nm VCSEL/PIN -7.6~2.4 <-9.5 MTP/MPO-12
GTQ-B08A4-02DC 40G SR BiDi 150m 850/900nm VCSEL/PIN -4~5 <-11 LC
GTQ-B08A4-04DC 40G eSR4 300m 850nm VCSEL/PIN -7.5~0 <-11 MTP/MPO-12
GTQ-M13A4-02DC 40G PSM IR4 1.4km 1310nm DFB/PIN -5.5~1.5 <-11.5 MTP/MPO-12
GTQ-L13A4-M2DC 40GBASE-UNIV 150m/2km 1310nm DFB/PIN -7~4.3/-10~2.3 <-10/<-13.7 LC
GTQ-L13A4-02DC 40G LR4 Lite 2km CWDM DFB/PIN -7~2.3 <-11.5 LC
GTQ-M13A4-10DC 40G LR4 10km CWDM DFB/PIN -7~2.3 <-11.5 LC
GTQ-M13A4-10DC 40G PSM4 10km 1310nm DFB/PIN -6~-1 <-14.4 MTP/MPO-12
GTQ-M13A4-20DC 40G eLR4 20km CWDM DFB/PIN -4.5~2.3 <-12.5 LC
GTQ-B13A4-40DC 40G ER4 40km CWDM DFB/APD -2.7~4.5 <-21.2 LC
GTQ-M13A4-02DC 40G PSM4 Lite 2km 1310nm DFB/PIN -6~-1 <-14.4 MTP/MPO-12
GTQ-B13A4-30DC 40G ER4 Lite 30km CWDM DFB/APD -3.7~4.5 <-18 LC

Contact Details

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