Juniper QSFP28 100G ER BIDI-DOWN Transceiver | 100G, ER, QSFP28

Keep long-distance 100G links stable with Juniper’s QSFP28 100G ER BIDI-DOWN transceiver. Designed for extended-reach optical transport, it supports high-speed connectivity where aggregation, backbone, and inter-building links must stay predictable under load. The bidirectional design helps reduce fiber consumption compared with traditional duplex approaches, which can matter in constrained plant environments and high-density deployments. This module is a strong fit for teams standardizing on Juniper optics and building networks that need more than short-reach data center links. It is intended for 100G Ethernet environments that require extended reach and consistent optical behavior across production infrastructure. For architects and procurement teams, the value is in matching the right optic to the right distance class—avoiding under-specced parts that create operational risk and avoiding overspending on unnecessary transport gear. Use it where link reliability, reach, and port planning carry real cost. The QSFP28 form factor supports modern high-density switching platforms, while the ER class positions it for longer runs than standard short-reach optics. For organizations that treat optics as infrastructure, not accessories, this module helps preserve network design integrity at scale.