HPE 817040-B21

Compatible 40GBASE‑SR4 QSFP transceiver module – 850 nm, MPO, TAA Compliant

The 817040‑B21 40GBASE‑SR4 QSFP transceiver module (compatible) enables high-density 40 Gigabit Ethernetconnectivity over multimode fiber using standard MPO/MTP connections. Supporting link distances up to 150 m on OM4 and 100 m on OM3 fiber, this module delivers full-duplex 40 Gbps throughput via four independent 10.3125 Gbps lanes. It features Digital Optical Monitoring (DOM) for real‑time diagnostics and is TAA compliant—suitable for government and compliant enterprise environments.Engineered for use in HPE BladeSystem and Synergy interconnects, this plug-and-play module offers reliable, manufacturer‑tested performance for data centers, aggregation switches, and high-speed fiber uplinks. Its low-power design (<1.2 W) and MSA‑compliant QSFP+ interface ensure broad compatibility with enterprise networking gear.

Features

This transceiver supports 40GBASE‑SR4 Ethernet (IEEE 802.3ba) over multimode fiber at 850 nm wavelength, transmitting via MPO‑12 connectors. Each of the four transmit and receive channels runs at up to 10.3125 Gbps, yielding an aggregate 41.25 Gbps data rate. It operates over OM3 up to 100 m and OM4 up to 150 m, making it ideal for short-reach high-density optical uplinks in data center or campus fabric designs

Advanced Options

Built to meet MSA standards—including SFF‑8436, SFF‑8679, and SFF‑8636—this transceiver is hot-swappable and supports DOM/ DDM for monitoring real-time optical power, temperature, and voltage via I²C/TWI interfaces