
The 100G QSFP28 ZRHF DCO ≤120km DWDM C-band Tunable Digital Coherent Module, Cisco is a QSFP28 optical transceiver delivering 100Gbps over Duplex SMF. Operating at 100GHz gird: 1528.77~1566.31nm50GHz gird: 1528.77~1566.72nm with a Duplex LC/UPC interface, it reaches unamplified: ≤120kmamplified: ≤300km and is compliant with IEEE 802.3™-2022, 100GBASE-ZR, CMIS, SFF-8024. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in data center interconnect, metro transport and carrier aggregation networks.
Product Highlights
- QSFP28 form factor, 100Gbps data rate
- Wavelength: 100GHz gird: 1528.77~1566.31nm50GHz gird: 1528.77~1566.72nm
- Connector: Duplex LC/UPC
- Reach: up to unamplified: ≤120kmamplified: ≤300km
- Fiber media: Duplex SMF
- DDM/DOM: Supported
Specifications
| Part Number | QSFP-ZRHF-100G-S |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 |
| Max. Data Rate | 100Gbps |
| Wavelength | 100GHz gird: 1528.77~1566.31nm50GHz gird: 1528.77~1566.72nm |
| Max. Cable Distance | unamplified: ≤120kmamplified: ≤300km |
| Connector | Duplex LC/UPC |
| Media | Duplex SMF |
| Transmitter Type | Tunable |
| Receiver Type | Coherent |
| TX Power | 0dBm |
| Minimum Receiver Power | unamplified: -30dB |
| Power Budget | unamplified: 30dB |
| Receiver Overload | unamplified: 1dBmamplified: 3dBm |
| Max. Power Consumption | Typical: <6.0WMax: <6.5W |
| Inbuilt FEC | Host: RS FEC or NoneMedia: SC FEC |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| CD Robustness | Default, OSNR penalty < 0.5dB: 2.4 ns/nm Extended, OSNR penalty < 1.0dB: 6.0 ns/nm |
| OSNR Tolerance | 100G DQPSK SC: ≤16.5 dB/12.5GHz: ≤21.5 dB/12.5GHz |
| Modulation Format | 4x 25G NRZ, DP-DQPSK |
| Protocols | IEEE 802.3™-2022, 100GBASE-ZR, CMIS, SFF-8024 |
Applications
Built for data center interconnect, metro transport and carrier aggregation networks, this QSFP28 module carries 100Gbps over Duplex SMF up to unamplified: ≤120kmamplified: ≤300km per link. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. If your project needs a specific vendor coding or custom label, our production line handles it as a routine step before packing. The link runs 4x 25G NRZ, DP-DQPSK modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
Compliance: IEEE 802.3™-2022, 100GBASE-ZR, CMIS, SFF-8024. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.
Ordering Information
To order, quote QSFP-ZRHF-100G-S together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.
Packing Details
Standard packing is an anti-static bag plus blister protection, with cartons sized to keep products from moving in transit. We apply our standard labels by default; neutral packing or customer-branded labels, part number stickers and serial barcodes are all available on request.
OEM and Custom Orders
We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.
Shipping and Lead Time
Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.
Tested Before Shipment
We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.



