2x100GBASE-SR4 QSFP28-DD MSA Compatible Module: 2x100G-QDD-100

# Key Highlights
  • Type: 2x100GBASE-SR4 QSFP28-DD
  • Compatibility: Multi-Vendor MSA Compatible
  • Tx/Rx Wavelength: 8x850nm/8x850nm
  • Laser: VSCEL
  • Modulation: NRZ
  • Fiber Type: Multi-Mode Fiber (MMF)
  • Connectors: MTP/MPO-24
  • Optical Budget: 1.9dB
  • Max. Distance: 100 m (OM4) / 70 m (OM3)
  • Data Rate: 2×103.125 Gbps
  • DDM/DOM: Supported
  • Power Consumption: ≤ 4W
  • Temperature: Standard 0° – 70°C
# Pricing & Ordering
SKU: 2x100G-QDD-100


Standard recommended retail price without VAT.

Lead Time: Below 1 Week in EU Countries
# Quality Assurance

Because of our comprehensive Testing Program, we are confident on quality of our products. Such approach empower us to cover all our products with:

# Key Technical Data
Media Type:

Multi-Mode Fiber (MMF)



Supported Data Rate:

2×103.125 Gbps

Supported Applications:

2x100G Ethernet (206.25 Gbps)


NRZ (Non-return-to-zero)



CDR (Clock and Data Recovery) chip


Minimum Optical Budget:

1.9 dB

Maximum Distance:

100 m (OM4) / 70 m (OM3)

TX Wavelength:

8×850 nm

Tx Wavelength Bandwidth:

20 nm (840-860 nm)

Transmitter Type:


RX Wavelength:

8×850 nm

Rx Wavelength Bandwidth:

20 nm (840-860 nm)

Receiver Type:

PIN photodiode

Average Launch Power (Min) Each Lane:

-8.4 dBm

Average Launch Power (Max) Each Lane:

2.4 dBm

Extinction Ratio (Min):

3 dB

Average Receiver Sensitivity (Min) Each Lane:

-10.3 dBm

Average Receiver Sensitivity (Max) Each Lane:

2.4 dBm

Receiver Overload:

3.4 dBm

Temperature Range:

Standard 0°-70°C

Storage Temperature:

-20° to 85°C

Relative Humidity:

0 to 85%

Power Consumption:





CMIS V4.0, IEEE 802.3bm 100GBASE-SR4, QSFP-DD MSA, RoHS-6, CE, SFF-8665

# Product Documentation
# Product Description

2x100G-QDD-100 is Multi-Vendor MSA Compatible 2x100GBASE-SR4 QSFP28-DD (Quad Small Form-Factor Pluggable Double Density) Transceiver designed for operation over multi-mode optical fiber. 2x100G SR4 has a QSFP-DD form factor which supports eight electrical interface lanes which can operate in 25G NRZ encoding mode resulting in 200G (8x25G) data rate. Technically 2x100GBASE-SR4 QSFP28-DD modules consists of two 100G transceivers in one housing which can provide great flexibility for operators in their migration path towards QSFP-DD gear and 400G PAM4 infrastructure and help to make necessary interconnections with high density legacy 100GBASE-SR4 QSFP28 interfaces which use NRZ encoding. Module has a minimum guaranteed optical budget of 1.9 dB, which in most cases is enough to reach 100 m over OM4 multimode fiber, or 70 m over OM3 multimode fiber. However, distance is just an indicative parameter calculated for comfort of identification. Eventually we calculate distance taking in account minimal optical budget and average attenuation of optical cabling in industry. 2x100G SR4 uses 8 channel 25Gb/s VCSEL (Vertical Cavity Surface Emitting Laser) (850 nm) transmitters and 8 channel 25Gb/s PIN photodiode receivers. Module supports DDM/DOM optical diagnostics, which provide diagnostic information about the present operating conditions. 2x100G-QDD-100 operates in standard 0°-70°C temperature range and has an MPO/MTP-24 connector. 2x100GBASE-SR4 QSFP-DD supports 2×103.125 Gbps data rate and such applications as 2x100G Ethernet (206.25 Gbps). 2x100G-QDD-100 optical transceiver is a multi-purpose module which can be used in various scenarios in today’s networking environment. Most popular applications are Telecom Metro/Core, Mobile Operator Core or Data Center Core Networks.

The 2x100G-QDD-100 transceivers are widely used in Cisco, Juniper, Dell and other industry well known manufacturers equipment. Transceivers are CE/RoHS certified and are compliant with product safety standards. 2x100G SR4 transceiver is fully compliant to QSFP-DD Multi Source Agreement (MSA), IEEE 802.3bm 100GBASE-SR4 standard. Consequently, compliance to above standards guarantees that module is compatible and works with majority of networking equipment, where is not implemented special algorithm for protection against third party modules. However – we have accumulated expertise in custom-encoded firmware for 2x100G-QDD-100 in order to make these modules work in almost any brand of equipment. We will be glad to know your requirements – Contact Us.