100GBASE-ZR4 QSFP28 80km Transceiver: 100G-QSFP28-80
100G QSFP28 ZR4 over single-mode fiber
100Gb/s over 80 km of G.652 single-mode fiber, four LAN-WDM lanes at 1295.56, 1300.05, 1304.58 and 1309.14 nm, with a 30 dB optical budget. NRZ direct-detection (not coherent), so host RS-FEC is mandatory. EML transmitters and SOA+PIN receivers, LC duplex connector, DOM.
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 80 km
- Average Link Budget: 30 dB
- Tx Wavelength: 1310 nm
- Supported Data Rate: 103.125 Gbps
- DDM/DOM: Supported
- Forward Error Correction (FEC): Host FEC Supported
- Temperature Range: Standard 0°-70°C
100GBASE-ZR4 QSFP28 80km Pricing
SKU:100G-QSFP28-80
In Stock - Ships Next Business Day100GBASE-ZR4 QSFP28 80km Transceiver Specification
Form Factor | QSFP28 |
Modulation | NRZ (Non-Return to Zero) |
Media Type | Single-Mode Fiber (SMF) |
Connector | Double LC/UPC |
Fiber Count | Duplex |
Maximum Distance | 80 km |
Average Link Budget | 30 dB |
TX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelength | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 103.125 Gbps |
Supported Ethernet Applications | 100G Ethernet (103.125 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Launch Power (Min) Each Lane | 2 dBm |
Average Launch Power (Max) Each Lane | 6.5 dBm |
Extinction Ratio (Min) | 6 dB |
Receiver Type | SOA+PIN |
RX Wave Bandwidth | 4 LAN WDM Seperated 1310 nm Lanes (15.66 nm 1294.53 – 1310.19nm) (L0 Tx center 1295.56nm, L1 Tx center 1300.05nm, L2 Tx center 1304.58nm, L3 Tx center 1309.14nm) |
Average Receiver Sensitivity (Min) Each Lane | -28 dBm |
Average Receiver Sensitivity (Max) Each Lane | -7 dBm |
Receiver Overload | 5.5 dBm |
Temperature Range | Standard 0°-70°C |
Storage Temperature | -40° to 85°C |
Relative Humidity | 5 to 85% |
Power Consumption (Max) | 6.5 W |
Power | +3.3V single power supply |
Compliance | CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, MSA-extended from IEEE 802.3ba LR4, 100GBASE-ZR4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665 |
100GBASE-ZR4 QSFP28 80km Transceiver Datasheet
v3Complete technical specifications and product details
100GBASE-ZR4 QSFP28 80km Transceiver Description
The 100G-QSFP28-80 is a 100GBASE-ZR4 QSFP28 transceiver that carries 100Gb/s Ethernet over 80 km of duplex single-mode fiber. The standard is MSA-extended from IEEE 802.3ba LR4; same 4x25G NRZ direct-detection scheme over a 4-channel LAN-WDM grid, with the link budget pushed to 30 dB to reach 80 km on G.652 SMF.
Four LAN-WDM channels, 1295.56, 1300.05, 1304.58 and 1309.14 nm, are multiplexed into a single LC duplex pair. EML transmitters at +2.0 to +6.5 dBm per lane average launch power deliver the headroom needed for the long reach, and SOA+PIN receivers with -28 dBm/lane minimum sensitivity recover the signal at the far end. Receiver overload is -5.5 dBm/lane.
Because ZR4 is direct-detection (not coherent PAM4 like OIF 400ZR), host RS-FEC (RS-528,514) is required at both ends of the link. ZR4 will not interoperate with a standard 100GBASE-LR4 endpoint, since LR4 does not enable RS-FEC by default. Plan ZR4-to-ZR4 deployments end to end.
Power draw is 6.5 W max at 3.3 V, commercial 0 to 70 °C operating range. Management is SFF-8636 over the QSFP28 MSA interface (SFF-8665), and DOM exposes lane-level optical power, temperature and laser bias to the host. Compliance covers CE, RoHS and Class 1 FDA / IEC 60825-1 laser safety.
Two deployment notes worth flagging at commissioning. First, the SOA+PIN receiver is engineered for long-haul loss; on short fiber spans, in-line attenuation prevents overload and protects the receiver. Second, host port FEC must be on before the link comes up clean; an LR4 host-port profile won't get a ZR4 module to link, even on identical chassis.
The 100G-QSFP28-80 is the EdgeOptic root product behind our vendor-coded 100GBASE-ZR4 compatibles, including Cisco QSFP-100G-ZR4-S and Q100-ZR4-S-EA, Arista QSFP-100G-ZR4, and equivalents from Hisense, Edgecore, HG Genuine, Source Photonics, Huawei and Ciena. Choose the vendor-specific page that matches the chassis you're deploying on for OEM-coded EEPROM and platform-specific notes.
Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For volume pricing, project quotes or vendor-specific coding requests, contact our sales team.
Frequently Asked Questions about 100GBASE-ZR4 QSFP28
Does 100GBASE-ZR4 require RS-FEC?
Yes. RS-FEC (RS-528,514) is mandatory at the host port on both ends of a ZR4 link. The 80 km reach budget is built around FEC gain, so the link will not come up cleanly without it. Most modern Ethernet ASICs default RS-FEC on for ZR4 interfaces, but it should be confirmed during commissioning.
Will 100GBASE-ZR4 interoperate with 100GBASE-LR4 at the far end?
No. 100GBASE-ZR4 always uses RS-FEC; standard 100GBASE-LR4 does not enable FEC by default. The two cannot interoperate at link level. Plan ZR4 deployments end to end, ZR4 on both sides of the same fiber pair.
Why does 100GBASE-ZR4 need at least 12 dB of attenuation on short fiber runs?
ZR4 launches at +2 to +6.5 dBm per lane to reach 80 km, and the SOA+PIN receiver overload threshold is -5.5 dBm per lane. On a short span with little fiber loss, the receiver sees too much power and risks permanent damage. Inline attenuators bring the input back into the operating window. Plan for at least 11–12 dB of total link loss between two ZR4 endpoints; verify the minimum against your transceiver's datasheet.
Is 100GBASE-ZR4 the same as coherent 100ZR or OpenZR+?
No. 100GBASE-ZR4 is a direct-detection LAN-WDM module, four NRZ lanes at 25 Gb/s each, MSA-extended from IEEE 802.3ba LR4 to 80 km. Coherent ZR variants such as OIF 400ZR, OpenZR+ and 100ZR use a single coherent wavelength with PAM4 / DSP and target much longer reach. Different optics, different host requirements, not interchangeable.