QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF Transceivers

Quick Details
Part number: VC-QDD-400G-ER4L Connector Type: Duplex LC
Form Factor:QSFP-DD Wavelength: LWDM4
Distance:30km Fiber Type:SMF

Model Number: #17467 Category:

Brief Introduction

The Vchung  400GBASE-ER4-Lite module supports link lengths of up to 30-40km over a standard pair of G.652 single mode fiber (SMF) with duplex LC connectors. It is compliant to IEEE 802.3bs protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standard. The 400 Gigabit Ethernet signal is carried over four LWDM grid optical wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed within the device.


  1. QSFP-DD MSA compliant
  2. LWDM lanes MUX/DEMUX design
  3. Up to 30km transmission on single mode fiber (SMF) with FEC
  4. Operating case temperature: 0 to 70°C
  5. 125Gb/s electrical interface (400GAUI-8)
  6. Data Rate 106.25Gbps (PAM4) per channel.
  7. Maximum power consumption 12W
  8. Duplex LC connector
  9. RoHS compliant


  1. Data Center Interconnect
  2. 400G Ethernet
  3. Infiniband interconnects
  4. Enterprise networking


Part No. VC-QDD-400G-ER4L Form Factor QSFP-DD
Distance 30km Wavelength 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm
Operation Temperature 0 to 70°C (32 to 158°F) Connector DUPLEX LC UPC
Voltage 3.3V Cable Type SMF
Host Required With FEC Transmitter Type EML LWDM
Receiver Type APD TX Power +0.4~+6.5dBm
Receiver Sensitivity < -12.1dBm Powerbudget 12.5 dB
Maximum Power < 12W Data Rate 400G/ps
Inbuilt FEC NO Modulation Format 8x 50G PAM4
Extinction Ratio 6dB Protocols IEEE 802.3cu, QSFP-DD MSA, CMIS 4.1

QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF TransceiversOptical transceivers port(LC)

For LC port, there are two types of single-fiber bidirectional optical transceivers (one LC connector) and dual-fiber unidirectional optical transceiver (two LC connectors).
Single fiber bidirectional is used to send and receive signals in one fiber, and dual fiber unidirectional optical transceivers are used to one fiber to send signals and other fiber to receive signals.

Optical transceivers series

Vchung offer comprehensive optical modules, data rate from 155M to 100G,form factor including SFP,SFP+,XFP,SFP28,QSFP+,CFP,CFP2 and QSFP28,support MMF and SMF interface.
Vchung closely follow optical communication market trend, offers comprehensive transceivers solution, including:
1. Data center:100G QSFP28, 40GQSFP+, 10G SFP+, 10G/25G/40G/100G AOC.
2. Transport (OTN,PTN):100G CFP/CFP2/CFP4, 10G SFP+/XFP BIDI/CWDM/DWDM/Tunable, SFP.
3. Wireless(5G fronthaul,middlehaul and backhaul):25G SFP28, 50G QSFP28 PAM4.
QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF Transceivers


The optical transceivers can be adapted to Cisco, Huawei, Huasan, Alcatel-Lucent, Juniper, Brocade, HPE, Extreme, Ericsson and other equipment. It is 100% compatible with all vendors on the market.
Of course, before confirming the purchase, it is best to inform model of the equipment to which the optical transceivers is applied.
QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF Transceivers

QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF TransceiversIndustrial Standards

VCHUNG all optical transceivers meet or exceed industrial standards, such as CE and RoHS as well as the regulations of the FCC. Through continuous monitoring before, during and after the production process.

QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF TransceiversFull MSA Compliance

High availability optical transceivers meet the Multi Source Agreement (MSA) standard SFF-8431. With MSA Standards various manufacturers determine standardizations of the Transceiver to ensure the interoperability. The optical transceivers interface is defined electrically, mechanically and functionally.

Quality assurance

VCHUNG provides OEM services, VCHUNG supply all optical modules are high quality and reliable optical transceivers. For quality assurance, we provide three years replacement and lifelong maintenance service.
QSFP-DD-400G-ER4L 400G QSFP-DD ER4 Lite 30km LWDM4 LC SMF Transceivers



This drawing is for reference only. If you need more information and need to modify the drawing, please Email us:support@vchung.com

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