• HPE QSFP+ to SFP+ adapter in sleek server rack corridor
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HPE

HPE 720193-B21 | QSFP+ to SFP+ adapter (QSA), enables 10GbE SFP+ optics/DAC in a 40G QSFP+ cage, passive mechanical form‑factor converter, c‑Class interconnect ready

720193-B21

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Description

Compact QSFP+ to SFP+ adapter that lets you use 10GbE SFP+ transceivers or DAC/AOC cables in a QSFP+ port. Ideal for c‑Class interconnects and other QSFP+ uplinks, it provides a simple passive form‑factor conversion without optics or configuration, preserving existing 10GbE investments while maintaining clean, tool‑less installation.

Features

Reuse 10GbE SFP+ optics on QSFP+ ports to reduce costs
- Simple passive design—no power or configuration
- Tool‑less, compact form factor
- Ideal for staged migrations from 10GbE to higher‑speed uplinks

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Type: QSFP+ to SFP+ Adapter (QSA)
- Host side: QSFP+ port (40G cage)
- Device side: Accepts 10GbE SFP+ transceivers and SFP+ DAC/AOC
- Supported link speeds: 10GbE (no 40GbE through the adapter)
- Operation: Passive, no optics, no configuration
- Function: Physical form‑factor conversion (not a breakout or aggregator)
- Use case: Connect existing 10GbE optics/cables to QSFP+ uplinks on c‑Class interconnects/switches
- Installation: Tool‑less plug‑in

FAQs

Q: Does this convert a QSFP+ port to four 10GbE ports?
A: No. It is not a breakout. It allows a single 10GbE SFP+ in a QSFP+ cage.

Q: Can I achieve 40GbE using an SFP+ transceiver through this adapter?
A: No. Links are limited to 10GbE with compatible SFP+ optics or DAC/AOC.

Q: Which SFP+ modules are supported?
A: Typically 10GbE SR/LR SFP+ optics and SFP+ DAC/AOC are supported, subject to host port compatibility.

Q: Does the adapter add latency?
A: It is a passive mechanical adapter and introduces negligible latency.

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