MQD-56F2C-1 HG Genuine Compatible 400GBASE-FR4 QSFP-DD Transceiver
HG Genuine compatible MQD-56F2C-1 - Key Features
- Compatibility: HG Genuine
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 2 km
- Average Link Budget: 4 dB
- Tx Wavelength: CWDM 4 Ch
- Supported Data Rate: 425 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
HG Genuine MQD-56F2C-1 Price
HG Genuine compatible MQD-56F2C-1 Specifications
Form Factor | QSFP-DD |
Modulation | PAM4 (Pulse Amplitude Modulation 4-level) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 2 km |
Average Link Budget | 4 dB |
TX Wavelength | 4-channel CWDM (1271/1291/1311/1331 nm) |
RX Wavelength | 4-channel CWDM (1271/1291/1311/1331 nm) |
Supported Data Rate | 425 Gbps |
Supported Ethernet Applications | 400G Ethernet (425 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
CDR (Clock and Data Recovery) chip | Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 73 nm (1264.50–1337.50 nm) |
Average Launch Power (Min) Each Lane | -3.3 dBm |
Average Launch Power (Max) Each Lane | 3.5 dBm |
Extinction Ratio (Min) | 3.5 dB |
Receiver Type | PIN photodiode |
RX Wave Bandwidth | 73 nm (1264.50–1337.50 nm) |
Average Receiver Sensitivity (Min) Each Lane | -7.3 dBm |
Average Receiver Sensitivity (Max) Each Lane | 3.5 dBm |
Receiver Overload | 4.5 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 10 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, 100G Lambda MSA, 400GBASE-FR4, IEEE 802.3cu, QSFP-DD MSA |
HG Genuine compatible MQD-56F2C-1 Datasheet
v2Complete technical specifications and product details
HG Genuine compatible MQD-56F2C-1 Description
EdgeOptic's MQD-56F2C-1 compatible is an HG Genuine-coded 400GBASE-FR4 QSFP-DD transceiver that drops into a QSFP-DD host port programmed for HG Genuine. Same 2 km duplex single-mode reach, same LC/UPC connector, same optical and electrical envelope as the original module, with EEPROM coded so the host accepts the module on insertion.
Four CWDM wavelengths at 1271, 1291, 1311, and 1331 nm multiplex onto a single duplex pair. PAM4 modulation at 53.125 GBaud per lane delivers 400 Gb/s aggregate throughput. EML transmitters drive each wavelength channel; PIN photodiode receivers handle the inbound side. TX power is -3.3 to +3.5 dBm per lane, RX sensitivity is -7.3 dBm. The 4 dB optical link budget covers a 2 km OS2 span with margin for patch panels and splices in normal data center cabling environments.
HG Genuine, the brand of Wuhan Huagong Genuine Optics Tech Co., Ltd, supplies optical transceivers across multiple form factors and data rates. The MQD-56F2C-1 sits in the FR4 segment of their QSFP-DD lineup. EdgeOptic codes the EEPROM so the module is accepted on the target host once the platform supports the QSFP-DD form factor. Verify support against HG Genuine compatibility documentation for the specific switch and software release before ordering.
Don't confuse the MQD-56F2C-1 with the MQD-F2F2C. The MQD-56F2C-1 is FR4 over single-mode fiber: CWDM wavelength multiplexing, LC duplex connector, 2 km reach. The MQD-F2F2C is SR8 over multi-mode fiber: 850 nm VCSELs, MTP/MPO connector, 100 m reach over OM4 or OM5. Same QSFP-DD form factor and same vendor prefix, but different fiber plant, different connector, and different reach class. Always verify the exact part number against the installed module and chassis transceiver table before ordering a substitute.
Conforms to IEEE 802.3cu, 100G Lambda MSA 400G-FR4, QSFP-DD MSA, and CMIS 4.0. CMIS exposes per-lane TX and RX optical power, module case temperature, supply voltage, and laser bias current over standard I2C, so DOM integrates with existing chassis monitoring. KP4 RS-FEC (RS(544,514)) is required from the host ASIC to meet the PAM4 BER target. Class 1 laser safe per IEC 60825-1, CE and RoHS certified, commercial temperature 0 to 70 °C, under 10 W power consumption.
FR4 fits 400G data center interconnect, leaf-spine uplinks, and aggregation above a 100G leaf layer. Duplex LC patching keeps structured cabling simple where the existing single-mode plant already uses LC, the alternative to MPO-12 parallel optics on DR4. 2 km covers most intra-campus runs; longer spans move to LR4.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Made to order with a 2-week lead time and lifetime warranty included. For volume pricing or platform-specific EEPROM coding requests, contact our sales team.
Frequently Asked Questions
Is the MQD-56F2C-1 the same module as the MQD-F2F2C?
No. Both share the MQD prefix and the QSFP-DD form factor, and both are 400G modules from HG Genuine, but the optical interface is different in every respect. The MQD-56F2C-1 is 400GBASE-FR4 over single-mode fiber, with CWDM wavelengths at 1271/1291/1311/1331 nm, an LC duplex connector, and 2 km reach. The MQD-F2F2C is 400GBASE-SR8 over multi-mode fiber, with 850 nm VCSELs, an MTP/MPO-16 connector, and 100 m reach over OM4 or OM5. Different fiber plant, different connector, and different transceiver type. Always verify the exact part number against the chassis transceiver table before ordering a replacement.
How does EdgeOptic code the MQD-56F2C-1 compatible for different switch vendors?
EdgeOptic programs the EEPROM with the target switch vendor's identifiers before shipping, so the host accepts the module natively without unsupported-transceiver alerts. Specify the target chassis vendor on the order, including platform family where it affects coding (Cisco Nexus versus Catalyst, Arista 7060 series, Juniper QFX, and so on), and the module ships pre-coded for that platform. Multi-vendor coding requests are also supported when the same MQD-56F2C-1 part is needed across mixed-vendor sites; verify the exact target hosts against your switch vendors' compatibility documentation before placing the order.