QSFP-40G-4X10GLR Cisco Compatible 40G LR 10km SMF Transceiver

The QSFP-40G-4X10GLR is a 40G optical transceiver compatible with Cisco platforms. Plug-and-play, no configuration required.

• Data Rate: 40G
• Protocol: LR Breakout
• Fiber Type: SMF
• Reach: 10km
• Connector: MPO to 4x LC Duplex
• OEM Equivalent: QSFP-40G-4X10GLR

Compatibility: Documented OEM compatibility (Cisco published compatibility documentation): this module is accepted in 40G QSFP+ ports on the ASR 9000 Series, Catalyst 9400 Series, Catalyst 9500 Series, Catalyst 9600 Series, NCS 5500 Series, Nexus 3000 Series, Nexus 9200 Series, Nexus 9300 Series, and Nexus 9500 Series. This module follows Cisco's published compatibility matrix; for your exact line card or OS release, email 10.4@tenfouroptics.com and we'll confirm fit.

Works with: 4× 10G LR (SMF) optics at the far end — this module runs 40G as four 10G lanes in breakout mode.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

OEM-compatible and MSA-compliant. Manufactured to MSA specifications following ISO-certified processes. Class 1 laser certified, RoHS compliant. Digital Diagnostic Monitoring (DDM/DOM) supported. Every module is tested for traffic conformity per supported layer 2/3 protocols, DOM threshold verification, EEPROM/MSA value verification, serial number verification, and optical cleanliness before shipment.

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