EXT-100G-ER4 Extreme Compatible 100G QSFP28 ER4 40km SMF Transceiver

The EXT-100G-ER4 is a 100G QSFP28 optical transceiver compatible with Extreme platforms. Plug-and-play, no configuration required.

• Form Factor: QSFP28
• Data Rate: 100G
• Protocol: ER4
• Wavelength: 1550nm
• Fiber Type: SMF
• Reach: 40km
• Connector: Duplex LC
• OEM Equivalent: EXT-100G-ER4

Compatibility: Documented OEM compatibility (Extreme published compatibility documentation): this module is accepted in 100G QSFP28 ports on the Extreme 7520 Series, Extreme 7720 Series, Extreme 7830 Series, Extreme 8520 Series, Extreme 8720 Switch, ExtremeSwitching 5720 Series, ExtremeSwitching X870 Series, SLX 9540, SLX 9640, and VSP 7400 Series. This module follows Extreme'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.

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.

Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. In-stock items ship same or next business day — contact 10.4@tenfouroptics.com to confirm availability and lead time. Trusted by network engineers and procurement teams across North America for 10 years.