QSFP-100G-LR4-I Cisco Compatible 100G QSFP28 LR4 10km SMF Transceiver

Dropping the QSFP-100G-LR4-I in as a like-for-like swap holds a 100G single-mode span to 10km while retiring the original Cisco optic. It is a QSFP28 LR4 module on a duplex LC pair, coded to the host so it comes up recognized with no configuration step. Since the QSFP28 footprint, LR4 optics, and 10km SMF reach all match the part it replaces, the link resumes as designed and reports live status over DDM.

• Form Factor: QSFP28
• Data Rate: 100G
• Protocol: LR4
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: QSFP-100G-LR4-I

Compatibility: Documented OEM compatibility (Cisco published compatibility documentation): this module is accepted in 100G QSFP28 ports on the ASR 9000 Series, Catalyst 9500 Series, Catalyst 9600 Series, Cisco 8000 Series, NCS 540 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.

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

Verified for compatibility with Cisco platforms and manufactured to MSA specification, each unit is individually checked first. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. Stocked; ships same or next business day.