PRE-QSFP28-BL(H)-ELR1
The QSFP28-BL(H)-ELR1 optical transceiver supports 100G Ethernet over single-mode fiber with a reach of up to 20 kilometers using BIDI technology.
QSFP28, PAM4, BIDI, 100G, 20km, 1271/1331nm

The QSFP28-BL(H)-ELR1 optical transceiver module enables 100G Ethernet transmission over distances up to 20 kilometers using PAM4 modulation and bidirectional (BIDI) technology. It operates at 1271nm and 1331nm wavelengths, allowing efficient data transmission and reception over a single fiber, making it ideal for metro and long-distance enterprise networks.
The module’s hot-swappable design ensures easy installation or replacement without disrupting network operations. With its energy-efficient design, this transceiver provides cost-effective, high-performance data transmission over longer distances.
- PAM4 BIDI Technology: Optimizes fiber usage by transmitting and receiving data over a single fiber.
- Long-Distance Transmission: Supports up to 20 kilometers over single-mode fiber (SMF).
- 1271/1331nm Wavelengths: Designed for efficient, long-range connectivity.
- Hot-Swappable Design: Facilitates quick installation and maintenance without downtime.
- Energy-Efficient: Low power consumption for cost-effective operations.
- 100G Ethernet
- Metro Networks
- Long-Distance Enterprise Networks
- Fiber-Optimized Data Transmission