100G ER4 QSFP28 40km Duplex LC/UPC SMF Optical Transceiver
The 100G ER4 QSFP28 optical transceiver is a high-performance, long-reach solution for 100 Gigabit Ethernet applications. Designed to transmit over single-mode fiber (SMF) for distances up to 40km, it complies with the IEEE 802.3ba 100GBASE-ER4 standard.
This module integrates four LAN-WDM channels, each operating at 25Gbps, and multiplexes them into a 100G signal. It uses a duplex LC/UPC connector and operates at a 1310nm center wavelength. With advanced DDM functions, stable optical performance, and low power consumption, the 100G ER4 optical transceiver is ideal for demanding environments such as large-scale data centers, telecom backbones, and enterprise networks.
| Part Number | GL1H-Q2SM31ER4C | Tx Power (dBm) | 0.5~3 |
| Product | 100G QSFP28 ER4C | Rx Power (dBm) | ≤-19 |
| Max Data Rate | 103Gbps | Distance | 40km |
| Wavelength | 1295/1300/1305/1310nm | Connector | Duplex LC/UPC |
| Laser Type (TX/RX) | EML/GLD | Temp | 0~70 ℃ |
Long-distance 100G Ethernet links
Data center interconnect (DCI)
Carrier and telecom network backhaul
Metro aggregation networks
Enterprise core routing
The Fibrecross 100G ER4 QSFP28 transceiver is compatible with a wide range of major-brand switches and routers, including:
Cisco
Arista
Juniper
HPE
Brocade
Huawei (upon request)
Note: Custom compatibility testing available upon request.
Why Choose Fibrecross?
Proven reliability with full production testing
High compatibility across multiple platforms
Technical support and customization services
Competitive pricing for volume deployments
Global logistics and fast shipping
FAQ About 100G QSFP28 ER4 Optical Transceiver
The 100G ER4 QSFP28 40km transceiver module is primarily used for long-distance 100G Ethernet connectivity between core switches, routers, and data centers. It’s ideal for campus networks, metro aggregation layers, and carrier-grade backbone links requiring stable performance over up to 40 kilometers of single-mode fiber.
A QSFP28 100G ER4 1310nm 40km optical transceiver operates over four LAN-WDM channels around 1310nm. Each channel transmits at 25Gbps and is combined into a single 100G signal, enabling long-reach optical transmission over duplex LC/UPC single-mode fiber (SMF).
Yes, the 100GBASE-ER4 QSFP28 module from Fibrecross is tested for high compatibility with major vendors like Cisco, Arista, Juniper, and HPE. We also provide compatibility tuning and custom EEPROM configuration to ensure smooth deployment in your network infrastructure.
While both support 100G Ethernet, the QSFP28 ER4 100G 40km SMF duplex LC transceiver offers extended reach (up to 40km) compared to LR4’s 10km range. ER4 modules use LAN-WDM optics and often include APD receivers for enhanced sensitivity over longer distances.
Yes, the 100G ER4 QSFP28 long range 40km fiber module supports full digital diagnostic monitoring (DDM), also known as DOM. It allows real-time monitoring of key parameters such as optical power, temperature, voltage, and laser bias current.
The standard 100G ER4 Lite QSFP28 40km LC/UPC module operates in commercial temperature ranges (0°C to 70°C). For deployments in harsh environments or industrial applications, Fibrecross can provide custom extended temperature options upon request.
