100G QSFP28 ER4 optical module is an optical transceiver solution designed for long-distance, high-performance data communication. Housed in a standard QSFP28 form factor, it achieves transmission distances of up to 40 kilometers over single-mode fiber, perfectly addressing the core demands for high bandwidth and extended reach in scenarios such as Metropolitan Area Networks (MANs), Data Center Interconnects (DCI), and 5G backhaul.
| Product Features: |
●High speed I/O electrical interface (CAUI-4) compliant with IEEE 802.3bm-2015 ●Compliant with 100GBASE-ER4 Lite standard ●Single 3.3V Supply Voltage ●Maximum power consumption 5.5 W at 70ºC Case Operating Temperature ●LAN WDM EML laser and APD Receiver ●Universal QSFP28 MSA package with duplex LC connector ●Two Wire Serial Interface with Digital Diagnostic Monitoring ●Complies with EU Directive 2011/65/EU (RoHS compliant) ●Class 1 Laser |
The key strengths of this module lie in its high performance and integration. It supports 4-channel full-duplex transmission, with each channel operating at speeds up to 25.78 Gbps, aggregating into a 100G high-speed link over a single fiber using Coarse Wavelength Division Multiplexing (CWDM) technology. With a typical power consumption of less than 4.5 watts and featuring Digital Diagnostic Monitoring (DDM), it enables real-time performance monitoring and troubleshooting, significantly enhancing network manageability and operational efficiency.
Specification | |||
| Number | CL100GQSFPER4 | Vendor | C-LIGHT |
| Form Factor | QSFP28 | Data Rate Max | 103.125Gbps (4x 25.78Gbps) |
| Wavelength | 1310nm | Distance | 40km |
| Connector | LC | Media | SMF |
| Transmitter Type | 4 x LAN WDM EML | Receiver Type | PIN |
| TX Power | -2dBm~5dBm | Receiver Sensitivity | < 21dbm |
| Power Budget | 19dBm | Receiver Overload | < -4.5dBm |
| Power Consumption | ≤5.5W | Extinction Ratio | >8dB |
| DDM/DOM | Supported | Industrial Temperature Range | 0 to 70°C |
| CDR | TX & RX Built-in CDR | FEC Function | No |
| Protocols | SFF-8661 Rev 2.5, SFF-8636 Rev 2.10a,QSFP28 MSA and IEEE 802.3bm-2015 | Warranty | 3 Years |
In practical applications, the 100G QSFP28 ER4 is an ideal building block for constructing cost-effective, scalable long-haul network backbones. It is widely used in telecom operator networks, large-scale enterprise campus interconnections, and cloud service provider infrastructure. Providing stable and reliable connectivity for 100G Ethernet and OTN interfaces, it serves as a critical enabler for next-generation high-speed network architectures.
QSFP28 100G ER4 1310nm 40Km LC
TEL:+86 158 1857 3751












































●Compliant with QSFP28 Standard:SFF-8661 Rev 2.5, SFF-8636 Rev 2.10a
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