Detailed Specifications
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
QSFP+ form-factor delivering 40 Gbps line rate
Bidirectional transmission (single-pair fiber reuse) for cost-efficient cabling
LC duplex connector interface for multimode fiber (MMF) environments
Digital diagnostics monitoring (DDM) for performance and link health
Hot-pluggable module for minimal downtime during upgrades
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 841716-B21 |
| Product Type | 40 Gb QSFP+ Bidirectional Transceiver Module |
| Data Rate | 40 Gbps |
| Form Factor | QSFP+ |
| Connector Type | LC Duplex |
| Fiber Type | Multimode Fiber (MMF) |
| Maximum Reach | Up to ~100 m on OM3/OM4 MMF |
| Wavelength | Channels: 850 nm / 900 nm (bidirectional) |
| Digital Diagnostics | Supported |
| Power Consumption | Approx. 3.5 W |
| Operating Temperature | 0 °C to ~70 °C |
| Weight | ~0.08 lb (≈ 35 g) |
| Compliance Standards | IEEE 802.3ba (40GBASE-SR-BiDi), QSFP+ MSA, RoHS |
