200G QSFP56 FR4 EML CWDM4 2km Transceiver Module

Quick Details
Cable Type: SMF Form Type: QSFP56
Wavelength: CWDM4 Distance: 100M
Data Rate: 200G Connector Type: LC

Model Number: 16304 Category:

Brief Introduction

Vchung’ VC-QSFP56-200G-FR4 200G QSFP56 FR4 optical transceiver modules are designed to support 200G Ethernet, suitable for data center and 5G backhaul links up to 2km over single mode fiber with FEC. The 200G QSFP56 FR4 modules are compatible with IEEE 802.3bs 200GBASE-FR4, and operate at four CWDM wavelengths of 1271nm, 1291nm, 1311nm and 1331nm. With a built-in 200G PAM4 DSP, the module supports four electrical interface lanes, which operate in 50G PAM4 encoding mode resulting in 200G (4x50G) data rate.


1.Hot-pluggable QSFP56 form factor full-duplex transceiver module
2.4-channel CWDM4 TOSA and PIN ROSA
3.Data rate up to 53.125Gbps (26.5625GBd PAM4) per channel
4.200GAUI-4 electrical interface
5.Compliant with QSFP56 MSA, CMIS 4.0 and IEEE 802.3bs 200GBASE-FR4
6.Built-in 200G PAM4 DSP, Reach up to 2km over SMF with FEC
7.6W maximum power dissipation for DML version, 7W maximum power dissipation for EML version


1.200G Ethernet IEEE 802.3bs 200GBASE-FR4
2.Data Center Interconnection, 5G Backhaul Network


Form Factor QSFP56 Data Rate 200G (4x50G)
Wavelength 1271nm 1291nm 1311nm 1331nm Reach 100M
Media Single-mode Modulation Technique PAM4
Connector Type Duplex LC DOM With
Optical Components FR4 Power Supply Voltage Single 3.3V
Output Power / Receiver Sensitivity /
Compatiblity MSA Compliant Operating Temperature 0℃ to +70℃

200G QSFP56 FR4 EML CWDM4 2km Transceiver ModuleOptical 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.
200G QSFP56 FR4 EML CWDM4 2km Transceiver Module


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.
200G QSFP56 FR4 EML CWDM4 2km Transceiver Module

200G QSFP56 FR4 EML CWDM4 2km Transceiver ModuleIndustrial 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.

200G QSFP56 FR4 EML CWDM4 2km Transceiver ModuleFull 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.
200G QSFP56 FR4 EML CWDM4 2km Transceiver Module


200G QSFP56 FR4 EML CWDM4 2km Transceiver Module

Press the button on the right[DOWNLOAD FILE] to download the specification Datasheet

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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Q4. How about your delivery time?

Answer: A: Generally, it will take 2 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. Can you produce according to the samples?

Answer: A: Yes, we can produce by your samples or technical drawings.

Q6. What is your sample policy?

Answer: A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q7. Do you test all your goods before delivery?

Answer: A: Yes, we have 100% test before delivery.

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Answer: A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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