Brief Introduction
The Vchung 400G QSFP-DD VR4 is a hot-pluggable optical transceiver module, designed for 400G Ethernet links in data centers, using 100G PAM4 and VCSEL technology, under the premise that the system is enabled FEC, 425Gbps data interconnection within 50m can be achieved through 4 pairs of multimode fibers.
Features
- 4-channel full-duplex transceiver module in QSFP-DD hot-pluggable package
- 4 channels 850nm VCSEL and PIN
- Transfer rates up to 425Gb/s
- Complies with QSFP112 MSA and IEEE 802.3db Ethernet Transport Protocol
- Transmission using 4 pairs of parallel multimode fibers over distances up to 50m (OM4 MMF)
- Power consumption is less than 8W
- MPO12 optical interface
- Commercial-grade operating temperature range
- The supply voltage is 3.3V
- RoHS compliant (lead-free)
Applications
- 400GBASE-SR4
- 400G Ethernet Data Center
Specifications
| Part No. | VC-QDD-400G-VR4 | Form Factor | QSFP-DD |
| Distance | 50M | Wavelength | 850nm |
| Operation Temperature | 0 to 70°C (32 to 158°F) | Connector | MTP/MPO-12 APC |
| Voltage | 3.3V | Cable Type | MMF |
| DDM | Yes | Transmitter Type | 850nm VCSEL |
| Receiver Type | PIN | TX Power | -4.6~+4.0dBm |
| Receiver Sensitivity | < -6.4dBm | Powerbudget | 1.7dB |
| Maximum Power | < 9W | Data Rate | 400G/ps |
| Inbuilt FEC | Support | Modulation Format | 8x 50G PAM4 |
| Packaging Technology | COB | DSP | TX and RX |
| Extinction Ratio | 2.5dB | Protocols | QSFP-DD MSA, IEEE 802.3bs |
 | Optical 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. |  |
| Compatibility 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. |  |
 | Industrial 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. |
 | Full 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. |  |
