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40G QSFP+ ER4 optical transceiver for singlemode links up to 40km.
Optical Transceivers
XS-OT-40G-QSFPPLUS-ER4
40G QSFP+ optics for predictable xSONiC fabric connectivity.
Deployment Context
Where this platform fits.
Review positioning, capability notes, and deployment guidance for this xSONiC platform.
Product Positioning
XS-OT-40G-QSFPPLUS-ER4 is an xSONiC optical transceiver for 40G network links that need predictable compatibility across data center, enterprise, and AI fabric environments. It is positioned for teams standardizing optics by speed, form factor, reach, and media type while keeping sourcing and deployment records easy to trace.
Core Capabilities
- Provides 40G connectivity in a QSFP+ form factor.
- Supports ER4 link profiles up to 40km over singlemode media.
- Uses CWDM wavelength characteristics for the target optical profile.
- Terminates through LC Duplex interfaces for compatible cabling designs.
- Fits xSONiC switch deployments where optics need to map cleanly to port speed and link distance.
Typical Deployment Scenarios
Use XS-OT-40G-QSFPPLUS-ER4 when building or refreshing leaf, spine, access, aggregation, storage, or AI network links that require 40G optics in the QSFP+ package. The SKU keeps speed, form factor, and reach visible so operations teams can match modules to switch ports and cabling plans quickly.
Specification Overview
Technical specifications.
Use this table as the fast path for platform sizing, port planning, and software compatibility checks.
| Category | Optical Transceivers |
| Form Factor | QSFP+ |
| Speed | 40G |
| Reach | ER4 |
| Wavelength | CWDM |
| Connector Type | LC Duplex |
Buying FAQ
Procurement questions.
Short answers for buyers comparing fit, support, and quote requirements before contacting xSONiC.
What is XS-OT-40G-QSFPPLUS-ER4 used for?
XS-OT-40G-QSFPPLUS-ER4 is a quote-only xSONiC product in the Optical Transceivers family. It is positioned for fiber connectivity upgrades.
What specifications should buyers check before quoting XS-OT-40G-QSFPPLUS-ER4?
Start with Category: Optical Transceivers; Form Factor: QSFP+; Speed: 40G; Reach: ER4. Buyers should also confirm the deployment role, operating software profile, optics or cabling requirements, lead time, support scope, and any environment-specific constraints before purchase.
Is XS-OT-40G-QSFPPLUS-ER4 sold with public pricing?
No. XS-OT-40G-QSFPPLUS-ER4 is handled through a quote flow so xSONiC can confirm current pricing, availability, lead time, configuration, and deployment requirements for the buyer's environment.
How is XS-OT-40G-QSFPPLUS-ER4 supported in Australia?
xSONiC is operated by XGY Pty Ltd in Australia. Support scope, configuration assistance, documentation, and handover requirements are confirmed during quotation and delivered by the xSONiC team in Australian time zones.
What does the OEM or reference model mean for XS-OT-40G-QSFPPLUS-ER4?
OEM and source references are used to help identify the underlying hardware profile. The xSONiC product page and quote flow remain the canonical source for local configuration, support scope, availability, and commercial terms.
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