QSFP-40G-LR4 Cisco Compatible 40G QSFP+ LR4 10km SMF

The QSFP-40G-LR4 is a 40G QSFP+ optical transceiver compatible with Cisco platforms.

• Form Factor: QSFP+
• Data Rate: 40G
• Protocol: LR4
• Wavelength: 1310nm
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: QSFP-40G-LR4

Compatibility: The QSFP-40G-LR4-TFO is TenFour Optics' compatible equivalent of the Cisco QSFP-40G-LR4, coded per order for Cisco platforms. Cisco lists the QSFP-40G-LR4 for use in 40G QSFP+ ports on: 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. To confirm fit for a specific line card or OS release, email 10.4@tenfouroptics.com.

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

OEM-compatible and MSA-compliant. Compliance documentation (RoHS declaration, IEC 60825-1 laser classification) is available on request for project quotes. 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.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day.

Download datasheet (PDF)