Juniper QDD-400G-LR8 (740-082823) Compatible QSFP Module

# Key Highlights
  • Type: 400GBASE-LR8 QSFP-DD
  • Compatibility: Juniper Compatible
  • Tx/Rx Wavelength: 1273, 1277, 1282, 1286, 1295, 1300, 1304, 1309 nm
  • Laser: EML
  • Modulation: PAM4
  • Fiber Type: Single-Mode Fiber (SMF)
  • Connectors: Double LC
  • Optical Budget: 6.3dB
  • Max. Distance: 10km
  • Data Rate: 425 Gbps
  • FEC Forward Error Correction: Supported
  • DDM/DOM: Supported
  • Power Consumption: ≤ 14.5W
  • Temperature: Standard 0° – 70°C
# Pricing & Ordering


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:

Single-Mode Fiber (SMF.)


Double LC

TX Wavelength:

8 LAN-WDM lanes (1273 nm, 1277 nm, 1282 nm, 1286 nm, 1295 nm, 1300 nm, 1304 nm, 1309 nm)

RX Wavelength:

8 LAN-WDM lanes (1273 nm, 1277 nm, 1282 nm, 1286 nm, 1295 nm, 1300 nm, 1304 nm, 1309 nm)

Minimum Optical Budget:

6.3 dB

Maximum Distance:


Supported Data Rate:

425 Gbps

Supported Applications:

400G Ethernet (412.5Gbps)



CDR (Clock and Data Recovery) chip


Forward Error Correction (FEC):

Host FEC Supported

Transmitter Type:

EML Laser

Average Launch Power (Min) Each Lane:

-2.8 dBm

Average Launch Power (Max) Each Lane:

5.3 dBm

Extinction Ratio (Min):

3.5 dB

Receiver Type:

PIN photodiode

Average Receiver Sensitivity (Min) Each Lane:

-9.1 dBm

Average Receiver Sensitivity (Max) Each Lane:

5.3 dBm

Temperature Range:

Standard 0°-70°C

Storage Temperature:

-40° to 85°C

Relative Humidity:

10 to 85%

Power Consumption:





400GBASE-LR4, CMIS V4.0, IEEE 802.3bs, QSFP-DD MSA, RoHS-6, CE

Transceiver Type:


# Product Documentation
400G-QSFP-DD-10 Datasheet

Juniper Compatible QDD-400G-LR8 Module is based on our product 400G-QSFP-DD-10. When You will order it will be encoded to be compatible with Juniper equipment and it will be labeled with part number: 400G-QSFP-DD-10-JU, where JU means Juniper Compatible. Above You can download datasheet of our 400G-QSFP-DD-10 product.

# Product Description

QDD-400G-LR8 (740-082823) is a 400GBASE-LR8 Juniper Compatible 400G QSFP-DD (Quad Small Form-Factor Pluggable – Double Density) Transceiver designed for operation over Double Fiber Single-Mode Fiber (SMF) optical cable. On the transmission side 400GBASE-LR8 QSFP-DD converts 8x 50G 400GAUI-8 PAM4 (Pulse-Amplitude Modulation) electrical input channels (each 53.125Gbps) into 8 Single Lambda 50G PAM4 LAN-WDM optical signals which are multiplexed for transmission over SMF. Reversely the opposite is done on the receiving side. QDD-400G-LR8 (740-082823) Juniper compatible has a minimum guaranteed optical budget of 6.3 dB, which in most cases is enough to reach 10 km distance over OS2 single-mode fiber. However, distance is just an indicative parameter for comfort of identification that is calculated by taking into account minimal optical budget and average attenuation of optical cabling in industry. QDD-400G-LR8 (740-082823) compatible uses top quality Octa channel EML driver and EML lasers together with an optical multiplexer (8 LAN WDM lines: 1273.54, 1277.89, 1282.26, 1286.66, 1295.56, 1300.05, 1304.58 and 1309.14 nm) transmitter and 400Gb/s PIN photodiode array receiver. QDD-400G-LR8 (740-082823) supports DDM/DOM optical diagnostics that provide real-time diagnostic information about the present operating conditions. QSFP-DD LR8 operates in Standard 0°-70°C temperature range and has a Double LC interface. 400GBASE-LR8 QSFP-DD supports up to 425 Gbps data rate and is designed for 400G Ethernet application. It is a multi-purpose module used in a number of different places of today’s networking. Consequently, most popular use cases are in Internet Service Provider (ISP), Mobile Operator and Data Center Core Networks.

QDD-400G-LR8 (740-082823) Juniper compatible Transceiver is based on our 400G-QSFP-DD-10 product, which is fully compliant with QSFP-DD Multi Source Agreement (MSA), CMIS 4.0, IEEE 802.3bs 400 Gbps specification and 400GBASE-SR8, as defined in IEEE802.3cm and IEEE 802.3cd. Additionally, it is compliant with product safety standards and is CE/RoHS certified. We perform compatibility tests for QDD-400G-LR8 (740-082823) Juniper compatible Transceiver with the most recent Juniper networking equipment platforms, allowing us to encode transceiver EEPROM memory to be compatible with and work seamlessly with Juniper platforms! Because we are committed to providing high-quality service, we conduct rigorous quality checks before delivering our products. As a result, we perform optical parameter measurements, connector cleanness tests, and EEPROM memory data validation tests on our products. Feel free to Contact us – We will gladly learn about your needs and provide you with the best alternative of QDD-400G-LR8!