40GBASE SR4 QSFP+ Optical Transceiver 850nm MMF VCSEL Transceiver For Data Center

Basic Information
Place of Origin: China
Brand Name: Gigaopto, Neutral, OEM
Certification: CE,FCC,RoHs, TUV,UL
Model Number: GTQ-M08A4-02DC
Minimum Order Quantity: 1
Price: negotiable
Packaging Details: Static bag, Plastic PVC Pack, Retail box
Delivery Time: 2-3days
Payment Terms: L/C, T/T
Supply Ability: 5000pcs/month
Detail Information
Product Name: 40GBASE SR4 Data Rate: 40Gbps
Form Factor: QSFP+ Connector: MTP/MPO-12 Male
Component: VCSEL + PIN DDM: Supported
Distance: 150m@OM4/100m@OM3 Highlight: 40GBASE-SR4, QSFP+ MMF 850nm VCSEL 150m
High Light:

40GBASE SR4 QSFP+ Optical Transceiver


QSFP+ Optical Transceiver 850nm


VCSEL Transceiver

Product Description

40G SR4 QSFP+ 850nm VCSEL MMF Optical Transceiver Module for Data Center 40GBASE-SR4 Ethernet 150m DOM MTP/MPO-12




  • Compliant to the IEEE 802.3ba(40GBASE-SR4)
  • Up to 10.3Gbps Data rate per channel,High Channel Capacity: 41.2Gb/s per module
  • High Reliability 850nm VCSEL technology
  • Support interoperability with IEEE 802.3ae
  • Compliant to the QSFP+ MSA SFF-8436 Specification
  • Single 3.3V Power Supply and Power dissipation < 1.3W
  • 40Gbps 850nm 100M QSFP+ Optical Transceiver
  • I2C interface with integrated Digital Diagnostic Monitoring
  • Utilizes a standard 12/8 lane optical fiber with MPO connector
  • RoHS Compliant
  • Maximum link length of 100m links on OM3 multimode fiber Or 150m links on OM4 multimode fiber
  • Operating Case Temperature: 0℃~+70℃



Gigaopto’s GTQ-M85A4-02DC transceiver is designed for use in 40Gbps links over multimode fiber and operates at a nominal wavelength of 850nm, reaching a link up to 150m over OM4 MMF (100m over OM3) via a 12 Fibers MTP/MPO Male connector.

The transmitter section uses four Vertical Cavity Surface Emitted Lasers (VCSEL). The receiver section uses four integrated GaAs detector preamplifiers (IDPs) and four limiting post-amplifier ICs. and featuring with Gigaopto’s proven circuit, this QSFP+ SR4 provides reliable long life, high performance and consistent service.

It is with the QSFP+ 38-pin connector to allow hot plug capability.Digital diagnostics functions are available via an I2C interface, including Tx and Rx power monitoring. The optical transceiver is compliant as per the RoHS Directive 2011/65/EU.

This 40Gbps SR4 transceiver is compliant with QSFP+ MSA, IEEE 802.3ba 40GBASE-SR4 and breakout to 4x10GBASE-SR standard.

With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as data centers, campus and computing networks, interconnections within and between switches, routers, NICs and transport equipment.





Form Factor QSFP+ Bandwidth (Gbps) 41.2Gbps (4×10.3Gbps)
Center Wavelength 850nm Max Cable Distance 150m@OM4/100m@OM3
Connector MTP/MPO-12 Male Media MMF
Transmitter Type VCSEL Receiver Type PIN
TX Power -7.6~2.4dBm Receiver Sensitivity <-9.5dBm
Extinction Ratio >3dB Receiver Overload >2.4dBm
Power Consumption ≤1.5W Power budget 1.9dB
Bit Error Ratio (BER) 1E-12 Temperature Range 0 to 70°C (32 to 158°F)
DDM/DOM Supported Host FEC Supported
OEM/ODM Supported MTBF 1,000,000Hours
Compliance IEC/EN 61000-4-2, IEC-60825
FDA 21CFR 1040.10 and 1040.11


Optical Specification


Parameter Symbol Unit Min Typ Max Notes
Transmitter (per Lane)
Signaling rate per lane   Gbps   10.3125    
Center wavelength λc nm 840   860  
RMS Spectral Width SW nm     0.65  
Transmit OMA per Lane TxOMA dBm -5.6   3  

Average Launch Power per


TXPx dBm -7.0   2.4  
Optical Extinction Ratio ER dB 3      
Relative Intensity Noise RIN dB/Hz     -128  
Optical Return Loss Tolerance   dB     12  

Average launch power of OFF

Transmitter, each lane

  dBm     -30  

Transmitter Eye mask definition

{X1,X2,X3, Y1,Y2,Y3}

    Compliant with IEEE 802.3ba  
Receiver(per Lane)
Signaling rate per lane   Gbps   10.3125    
Center wavelength λIN nm 840   860  
Average power each lane RXPx dBm -9.5   2.4  
Rx Sensitivity per lane RSENS dBm     -9.9 Note1
Receiver reflectance Rfl dB     -12  
LOS De-Assert LOSD dBm     -15  
LOS Assert LOSA dBm -30      
LOS Hysteresis   dB 0.5      

Note1: Measured with a PRBS 231 -1 test pattern, @10.3125Gb/s, BER<10 -12 .


Electrical Specification


Parameter Symbol Unit Min Typ Max Notes
Supply Voltage VCC V 3.15 3.3 3.45  
Supply Current ICC A     0.45  
Power Consumption Pc W     1.5  
Signaling rate per lane   Gbps   10.3125    
Input Differential Impedance RIN Ω 90 100 110  
Differential data input swing VIN mVp-p 180   1200  
Signaling rate per lane   Gbps   10.3125    
Output Differential Impedance ROUT Ω 90 100 110  
Differential data output swing VOUT mVp-p 0   800  
IIC communication
IIC Clock frequency - KHz 100   400  





All Gigaopto’s transceivers are standards-based and MSA (Multi-Source Agreement) compliant, and rigorously tested and coded in our own facilities to ensure the highest level of performance. We conduct 100% application testing under end-use conditions.

For this GTQ-M85A4-02DC 40G SR4, please refer to the P/N correspondence table. For more product compatibility, please feel free to tell us.


Corresponding Compatible Brand/Part Number
Brand Part Number Brand Part Number
Gigaopto GTQ-M85A4-02DC Arista QSFP-40G-SR4
Cisco QSFP-40G-SR4 HW QSFP-40G-SR4
Extreme 40GB-SR4-QSFP Juniper QSFPP-40GBASE-SR4
Dell 430-4593 Brocade 40G-QSFP-SR4
D-Link DEM-QX01Q-SR4 Mellanox MC2210411-SR4
F5 Networks F5-UPG-QSFP+ Fortinet FG-TRAN-QSFP+SR
Avago AFBR-79EQPZ Palo Alto Networks PAN-40G-QSFP-SR4
H3C QSFP-40G-SR4-MM850 MikroTik Q+85DMTP150D
Check Point CPAC-TR-40SR-SSM160-QSFP Chelsio SM40G-SR
Allied Telesis QSFPSR4 MRV QSFP-40G-SX
Edge-Core ET6401-SR4 HPE H3C JG325B
IBM 00D9865 AvayA AA1404005-E6
Alcatel-Lucent QSFP-40G-SR Gigamon QSF-502
Apresia H-SR4-QSFP+ Quanta QSFP-SR4-40G



Package Dimensions


40GBASE SR4 QSFP+ Optical Transceiver 850nm MMF VCSEL Transceiver For Data Center 0



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


P/N Description Wave Length Reach Fiber Type TX Power (dBm) Rx Sens. (dBm)
GTQ-M85A4-02DC 40G SR4 850nm 150m MMF -7.6~2.4 <-9.5
GTQ-B08A4-02DC 40G SR BiDi 850/900nm 150m MMF -4~5 <-11
GTQ-B08A4-04DC 40G eSR4 850nm 300m MMF -7.5~0 <-9.9
GTQ-M13A4-02DC 40G PSM IR4 1310nm 1.4km SMF -5.5~1.5 <-11.5
GTQ-L13A4-M2DC 40GBASE-UNIV 1310nm 150m/2km MMF/SMF -7~4.3/-10~2.3 <-10/<-13.7
GTQ-L13A4-02DC 40G LR4 Lite 1310nm CWDM 2km SMF -7~2.3 <-11.5
GTQ-M13A4-10DC 40G LR4 1310nm CWDM 10km SMF -7~2.3 <-11.5
GTQ-M13A4-10DC 40G PSM4 1310nm 10km SMF -6~-1 <-14.4
GTQ-M13A4-20DC 40G eLR4 1310nm CWDM 20km SMF -4.5~2.3 <-12.5
GTQ-B13A4-40DC 40G ER4 1310nm CWDM 40km SMF -2.7~4.5 <-21.2
GTQ-M13A4-02DC 40G PSM4 Lite 1310nm 2km SMF -6~-1 <-14.4
GTQ-B13A4-30DC 40G ER4 Lite 1310nm CWDM 30km SMF -3.7~4.5 <-18
Note OEM/ODM supported


Contact Details

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