Cisco

Cisco CVR-CPAK-QSFP40 | 40G LR4 adapter | CPAK to QSFP+ | 1310 nm | 10 km SMF | LC duplex | 40GBASE-LR4

SKU:CVR-CPAK-QSFP40

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Description

Form-factor converter that enables platforms with CPAK cages to use QSFP+ 40G LR4 optics. Preserves the optical characteristics of the inserted QSFP+ LR4 module (1310 nm CWDM lanes, up to 10 km over SMF, LC duplex). Ideal for migrating CPAK-based ports to the QSFP+ optics ecosystem.

Features

- Enables QSFP+ 40G LR4 use on CPAK ports
- No-impact pass-through of optical specs
- Simple migration from CPAK to QSFP+ ecosystem
- Tool-less form-factor conversion

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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FAQs

Technical Specifications

FAQs

Q: Does the adapter change the optical performance of the LR4 module?
A: No. It preserves the optical characteristics of the QSFP+ 40G LR4 inserted; link budget and reach are determined by the optic.

Q: Can I use QSFP+ SR4 or other QSFP+ types with this adapter?
A: This variant is intended for QSFP+ 40G LR4. Other QSFP+ types may not be supported—verify against platform guidance.

Q: Is DOM/diagnostics information available through the adapter?
A: Digital diagnostics are passed through from the QSFP+ optic when supported by the host platform.

Technical Specifications

- Host cage/interface: CPAK
- Module interface: QSFP+ (40G LR4)
- Data rate: 40 Gbps
- Optical standard: 40GBASE-LR4 (IEEE 802.3ba)
- Wavelength: 4x 1310 nm CWDM lanes (as per QSFP+ LR4)
- Reach: Up to 10 km over single-mode fiber (OS2), subject to QSFP+ LR4 used
- Optical connector: LC duplex (from QSFP+ LR4)
- Function: Mechanical/electrical form-factor conversion (no optics inside)
- Use case: Operate QSFP+ 40G LR4 optics in CPAK slots
- Platform note: Feature and compatibility depend on host platform/software

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