400G QSFP-DD High-power Coherent Tunable DWDM with FEC ZR++ with dual CDR 2,400 km, C-Band, Tx 1dBm, LC-Duplex, Singlemode
* 2400 km on amplified links
Tx & Rx wavelength required to be the same (one local oscillator)
- Coherent high-power DWDM
- 2,400 km
- 425 G
- Tunable
- 2x 200G ETH
- 400G ETH
- 4x 100G ETH
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Alternatives
Hardware Restrictions
For your customer account, we have a restriction to a specific Series for this product which may affect leadtime.
You'll automatically receive the listed hardware, as soon as the hardware is available.
If you'd like to receive another hardware, you can add a comment during checkout.
The availability of the Series changes quite fast and may not be correct. It's just an indication.
| Series | Reason | Ticket Number |
|---|
Our order confirmation will provide the final shipping date.
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~Nov 20, 2026+4 pcs
Just go to cart and click CREATE QUOTE.
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Alternatives
Specification
| Form Factor | QSFP-DD |
|---|---|
| Connector / Polish | LC-Duplex PC |
| Interface | Singlemode high-power DWDM |
| Compliance Code | ZR++ |
| Operating Temperature | Standard |
| Distance | 2,400 km |
| Temperature Range | 0°C - 75°C |
| Bandwidth | 425 Gbit/s |
| Digital Diagnostic Monitoring (DDM) | Yes, internally calibrated |
| Power Consumption | 25 W |
|---|---|
| CDR | TX and RX |
| SGMII | No |
| Inbuilt FEC | Yes, OFEC |
| Powerbudget (dB) | 13 dB |
| Transmit min/max per lane | -10 dBm / 1 dBm |
| Receiver min/max per lane | -12 dBm / 0 dBm (overload) @400G |
| Wavelength TX (Typical) | tunable Coherent high-power DWDM |
| TX Tunable Range | 1528.77 - 1567.13 nm |
| Wavelength RX (Range) | 1528.8 - 1567.1 nm |
|---|---|
| Laser | EML |
| Receiver Type | Coherent |
| Modulation | DP-DQPSK @400G |
| OSNR | 16.8 dB/0.1nm @400G |
| Supported Protocols | 2x 200G Ethernet, 4x 100G Ethernet, 400G Ethernet |
| CMIS Version | 5.3 |
Transceiver Configuration with FLEXBOX
It's that easy to useCompatibility
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- MSA Standard compatible
What customers say
Formerly a System & Network Engineer at the service of French Academic and Research Network and currently developing my own IT services business, I have been a strong advocate of FLEXOPTIX "one-SFP-fits-all" approach since 2015!
Having purchased close to 1500 optics over the last few years for different kinds of projects (Metropolitan & Campus Networks, Datacenter, Nexans FTTO projects), I have always been completely satisfied with FLEXOPTIX products.
I have had the opportunity to test several competing solutions and for me "FLEXBOX" is by far the most advanced in terms of functionality, ease of use and compatibility.
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Thanks a lot guys!
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Since we ordered a FLEXBOX, our life as definitly changed.
There’s a before and an after FLEXBOX.
So many vendors in the compatibility matrice, so easy way to configure the module!
And the cables and accessories came also with quality.
We are using FLEXOPTIX industrial grade transceivers in our control systems for power electronics and converters. The FLEXBOX is an invaluable tool, making it super easy and quick to configure transceivers. Even larger numbers can be configured easily with the batch configure option, just plug them in one after the other and the rest happens automatically. The power meter, source control and OTDR features are helpful for lab testing or during commissioning. Thanks, FLEXOPTIX for providing universal transceivers of a high quality at decent prices! Your lightning-fast order processing and shipping speed is also impressive.