
Built for hosts recognizing 400GBASE-ZRP, this HT-manufactured QSFP-DD module delivers 400G transmission at 1528.77~1567.13nm. Its rated reach is >600km, with Duplex LC/UPC as the physical interface. The specifications and engineering guidance below support network teams verify host acceptance as well as physical interface fit, while keeping HT manufacture separate from the OEM cross-reference.
OEM Part Number: 400GBASE-ZRPHT Part Number: QDD-ZRPH-400G
| Arista Compatible | 400GBASE-ZRP |
|---|---|
| Manufacturer | HT |
| HT Part Number | QDD-ZRPH-400G |
| Form Factor | QSFP-DD |
| Max. Data Rate | 100/200/300/400 Gbps |
| Wavelength | 1528.77~1567.13nm |
| Max. Cable Distance | >600km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| TX Power | -6~1dBm |
| RX Power | Amplified: Full Rx OSNR Tolerance: -12~0dBm Extended Range: ZRx00-OFEC: -18~3dBm 400ZR: -15~3dBm Unamplified: 400ZR: -20~0dBm ZR400-OFEC-16QAM: -23~0dBm ZR300-OFEC-8QAM: -26~0dBm ZR200-OFEC-QPSK: -30~0dBm ZR100-OFEC-QPSK: -32~0dBm |
| Max. Power Consumption | 22.5W |
| Minimum Receiver Power | Amplified: ≤-12dBm Unamplified: 400G ZR: ≤-20dBm 400G ZR+: ≤-23dBm |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0℃ to 70°C(32 to 158°F) |
| Inbuilt FEC | OFEC, CFEC |
| Modulation Format | 100G DP-QPSK/ 200G DP-QPSK / 300G DP-8QAM / 400G DP-16QAM |
| CD Tolerance | 400ZR: -2.4~2.4ns/nm ZR400-OFEC-16QAM: 12.0ns/nm ZR300-OFEC-8QAM: 18.0ns/nm ZR200-OFEC-QPSK: 24.0ns/nm ZR100-OFEC-QPSK: 48.0ns/nm |
| OSNR Tolerance | 400G ZR: 26dB/0.1nm 400G ZR+: 23.5dB/0.1nm 300G ZR+: 20dB/0.1nm 200G ZR+: 15dB/0.1nm 100G ZR+: 12dB/0.1nm |
| Protocols | Open ZR+ MSA 2.0 and OIF-400ZR-02.0,OIF-CMIS-05.2,OIF-C-CMIS-01.2,QSFP-DD-Hardware-Rev6.3 IEEE Std 802.3-2018 |
| Application | LH/Regional/Metro/ROADMs |
This coherent interface is suited to data-center interconnect, metro transport and managed DWDM links where the host platform supports the stated modulation and FEC modes. Design the optical line around the actual launch power, receiver range, OSNR requirement and span loss; the stated reach is not a substitute for a link-budget calculation. Use matching coherent modules and the appropriate DWDM channel plan at both ends.
Before deployment, check the host port type, supported data rate and firmware requirements. The 400G interface configuration must match the remote equipment; sharing a QSFP-DD housing alone does not make two transceiver types interoperable.
Coherent deployment requires a line-system review, not merely a matching connector. Confirm the DWDM channel, launch-power range, receiver limits, OSNR and FEC mode at both ends. Span loss and amplifier operation must remain inside the supported envelope, and stated reach should be validated against the actual route.
The module is checked for host recognition as 400GBASE-ZRP, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
For this model, the specified transmit-power range is -6~1dBm. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.
Check three layers before deployment: host acceptance of the module identity, port support for the stated rate, and a matching optical standard at the remote interface. For breakout operation, confirm lane configuration too. Similar-looking cages can behave differently across speeds and firmware settings. For this model, the principal parameters are data rate 100/200/300/400 Gbps, wavelength 1528.77~1567.13nm, rated reach >600km.
Quote HT part number QDD-ZRPH-400G together with OEM reference 400GBASE-ZRP and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.
Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.
Each 400GBASE-ZRP compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. Customer references, rack groups and project packing lists can be added for volume orders.
No. It is an HT-manufactured compatible alternative for equipment that specifies 400GBASE-ZRP, not an original Arista Networks-branded module.
Use Duplex LC/UPC with SMF. The specified maximum reach is >600km, subject to fiber quality and total link loss.
Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.