100GBASE-ZR4+ QSFP28 100km Transceiver: 100G-QSFP28-100P
100GBASE-ZR4+ QSFP28 100km Transceiver Overview
The 100GBASE-ZR4+ QSFP28 delivers 100 km reach over single-mode fiber without external amplification. With a 34 dB link budget (FEC enabled) and integrated SOA receiver, this is the longest-reach 100G option in the QSFP28 form factor. 4 LAN WDM lanes at 103.125 Gbps aggregate. EEPROM-coded for 80+ vendor platforms. From €1,006.01 — contact our sales team for volume pricing.
- Media Type: Single-Mode Fiber (SMF)
- Connector: Double LC/UPC
- Fiber Count: Duplex
- Maximum Distance: 100 km
- Guaranteed Link Budget: 34 dB
- Tx Wavelenght: 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 100km Pricing
SKU:100G-QSFP28-100P
In Stock - Ships Next Business Day100GBASE-ZR4+ QSFP28 100km 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 | 100 km |
Guaranteed Link Budget | 34 dB |
TX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
RX Wavelenght | 4-channel LAN WDM (1295.56/1300.05/1304.58/1309.14 nm) |
Supported Data Rate | 103.125 Gbps |
Supportet Ethernet Applications | 100G Ethernet (103.125 Gbps) |
DDM/DOM | Supported |
Forward Error Correction (FEC) | Host FEC Supported |
Transmitter Type | EML Laser |
Tx Wave Bandwidth | 2x4 LAN WDM Separated 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 | 3 dBm |
Average Launch Power (Max) Each Lane | 7.5 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 | -32 dBm |
Average Receiver Sensitivity (Max) Each Lane | 0 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, IEEE 802.3ba, IEEE 802.3bm, 100GBASE-ZR4+, ITU-T G.959, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8679 |
100GBASE-ZR4+ QSFP28 100km Transceiver Datasheet
v2Complete technical specifications and product details
100GBASE-ZR4+ QSFP28 100km Transceiver Description
The EDGEOPTIC 100G-QSFP28-100P is a multi-vendor compatible 100GBASE-ZR4+ QSFP28 optical transceiver designed for long-haul 100 Gigabit Ethernet applications over single-mode fiber infrastructure. This quad small form-factor pluggable module uses four wavelength division multiplexed optical lanes at 25.78125 Gbps each with enhanced optical performance, delivering 103.125 Gbps aggregate throughput for metro, regional, and inter-site network deployments requiring up to 100 km reach without external amplification.
The 100G-QSFP28-100P operates using LAN WDM technology with four discrete wavelength channels at 1295.56 nm, 1300.05 nm, 1304.58 nm, and 1309.14 nm, employing NRZ (Non-Return to Zero) modulation for signal encoding. This 100GBASE-ZR4+ transceiver uses an EML (Electro-absorption Modulated Laser) array for transmission and an SOA+PIN (Semiconductor Optical Amplifier with PIN photodiode) receiver assembly. The integrated optical amplification on the receiver side achieves the sensitivity required for 100 km reach, which distinguishes the ZR4+ specification from the standard ZR4 design.
The transceiver provides a guaranteed 34 dB optical link budget with host FEC enabled, which determines the maximum transmission distance. Over standard single-mode fiber, the 100G-QSFP28-100P can reach distances up to 100 km without external amplification. Distance is an indicative parameter calculated based on minimum optical budget and average attenuation of optical cabling in the industry. The ZR4+ specification is the longest-reach option within the QSFP28 form factor for native 100G NRZ transmission, extending 20 km beyond the standard ZR4 (30 dB per industry convention, 80 km) through the SOA+PIN receiver architecture.
The 100G-QSFP28-100P is a hot-pluggable QSFP28 module with dual LC/UPC connectors as the optical interface. The electrical interface conforms to SFF-8636 and SFF-8679 MSA (Multi-Source Agreement) specifications and is compatible with standard QSFP28 host systems. This 100GBASE-ZR4+ transceiver can be EEPROM-encoded to operate as a fully compatible module across 80+ equipment brands including Cisco, Juniper, Arista, Nokia, Huawei, and other major network vendors.
The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time monitoring of transmitted and received optical power levels, module temperature, laser bias current, and supply voltage. The 100G-QSFP28-100P requires host FEC (Forward Error Correction) to achieve its full 100 km reach by detecting and correcting bit errors across the extended transmission path. The module operates within a 0–70 °C commercial temperature range with maximum power consumption of 6.5 W, due to the additional power draw of the integrated SOA receiver.
The 100GBASE-ZR4+ designation is an industry MSA convention extending the LAN WDM wavelength plan defined in IEEE 802.3ba. The module also references ITU-T G.959.1 and conforms to QSFP28 MSA (SFF-8636/SFF-8679) electrical specifications. The transceiver is interoperable across vendors through MSA compliance, and equipment platforms with vendor-specific module validation are supported through custom EEPROM programming. The 100G-QSFP28-100P is CE/RoHS certified, Class 1 FDA and IEC 60825-1 Laser Safety compliant.
Typical applications for the 100GBASE-ZR4+ QSFP28 include metro network backbone connections, regional carrier interconnects, data center interconnects (DCI) spanning metropolitan areas, and enterprise WAN deployments requiring extended reach. The ZR4+ design provides maximum unamplified reach within the pluggable QSFP28 form factor, with the integrated SOA receiver closing the optical budget on 100 km spans that would otherwise require external amplification equipment.
EDGEOPTIC performs quality validation on every 100G-QSFP28-100P unit before shipment, including optical parameter measurements across all four LAN WDM channels, connector endface cleanliness inspection, and QSFP28 transceiver EEPROM memory data validation to confirm correct vendor-specific encoding and compliance with MSA specifications.
Frequently Asked Questions
What is the difference between ZR4 and ZR4+ QSFP28 transceivers?
The "+" in ZR4+ denotes an enhanced optical performance tier over the standard 100GBASE-ZR4 specification. Both use the same 4 LAN WDM wavelengths (1295.56, 1300.05, 1304.58, and 1309.14 nm) and NRZ modulation at 4×25.78125 Gbps, but they differ in reach and receiver architecture.
The ZR4+ achieves a 34 dB link budget (versus 30 dB for standard ZR4) by integrating a Semiconductor Optical Amplifier (SOA) with a PIN photodiode on the receiver side. This SOA+PIN architecture amplifies weak incoming signals internally, extending maximum reach to 100 km over single-mode fiber without external amplification. Standard ZR4 modules use a conventional receiver and are rated for up to 80 km.
The tradeoff is power consumption: the ZR4+ draws up to 6.5 W compared to approximately 5.5 W for standard ZR4. Both modules share the same QSFP28 form factor and require host-side FEC. EdgeOptic offers both variants: the 100G-QSFP28-80 (ZR4, 80 km) and the 100G-QSFP28-100P (ZR4+, 100 km).
Does the 100GBASE-ZR4+ require FEC to reach 100km?
Yes, host-side RS-FEC (Reed-Solomon Forward Error Correction) is mandatory to achieve the rated 34 dB link budget and 100 km reach on the 100G-QSFP28-100P. Without FEC enabled on the host switch or router, the usable link budget drops and the maximum achievable distance decreases well below 100 km.
FEC must be enabled on both ends of the link for the error correction to function. Most modern network platforms from Cisco, Juniper, Arista, and other vendors enable RS-FEC by default for 100G ZR4 and ZR4+ interfaces, but this should be verified during link commissioning. If you encounter CRC errors or link instability on a long-haul ZR4+ span, check FEC status on both endpoints first.
Can the ZR4+ QSFP28 reach 100km without an external amplifier?
Yes. The 100G-QSFP28-100P integrates a Semiconductor Optical Amplifier (SOA) on the receiver side, which amplifies weak incoming signals to detectable levels without any external equipment. No external optical amplifiers or mid-span regeneration is needed on 100 km spans.
The integrated SOA is what makes unamplified 100 km reach possible in the QSFP28 form factor, with fewer components and lower cost per link compared to amplified alternatives on long-haul metro and DCI routes. The tradeoff is higher power consumption (6.5 W maximum) compared to standard ZR4 modules, so operators should confirm that their QSFP28 port can supply adequate power. Most current-generation switches and routers handle this power level without issue.
What fiber plant requirements does the 100GBASE-ZR4+ have for 100km links?
The 100G-QSFP28-100P operates on standard ITU-T G.652 single-mode fiber, which is the most widely deployed fiber type in metro and long-haul networks. No specialty fiber is required.
For 100 km deployments, fiber quality matters. Accumulated link PMD (Polarization Mode Dispersion) should remain below 10 ps for the full span, which G.652D fiber (PMD coefficient ≤0.2 ps/√km) satisfies with margin. Engineers should calculate actual span loss using measured fiber attenuation (typical 0.25–0.32 dB/km at 1310 nm) plus all connector and splice losses, and reserve 2–3 dB of system margin for aging and environmental factors. At attenuation values above 0.32 dB/km, connector and splice losses will consume most of the remaining link budget.
Fiber routes installed to older G.652A or G.652B specifications may have PMD coefficients above 0.2 ps/√km and attenuation above 0.35 dB/km. These routes should be characterized with an OTDR and PMD analyzer before deploying ZR4+ at maximum reach. If the total span loss exceeds the 34 dB link budget after accounting for all losses and margins, consider the shorter-reach 100G-QSFP28-80 (ZR4, 80 km) as an alternative.