HPE 841716‑B21 40 Gb QSFP+ Bidirectional Transceiver
Overview
The HPE 841716‑B21 is a QSFP+ form‑factor optical transceiver module intended for data‑centre engineers deploying high‑density 40 Gb Ethernet links over multimode fiber. It supports 40 Gbps full‑duplex transmission using a bidirectional (BiDi) LC duplex interface, enabling operation over existing duplex MMF cabling. This module addresses the challenge of upgrading to 40 Gb Ethernet without replacing cables, making it suitable for server‑rack uplinks, switch interconnects or high‑throughput aggregation links. It fits into standard QSFP+ ports on compatible HPE/Aruba networking equipment and supports digital diagnostics for optical link monitoring.
Key Features
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QSFP+ form‑factor delivering 40 Gbps line rate
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Bidirectional transmission (single‑pair fiber reuse) for cost‑efficient cabling
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LC duplex connector interface for multimode fiber (MMF) environments
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Digital diagnostics monitoring (DDM) for performance and link health
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Hot‑pluggable module for minimal downtime during upgrades
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