QSFP-100G-BX40U Cisco Compatible 100G QSFP28 BiDi 40km SMF Transceiver

Cisco-coded · QSFP-100G-BX40U-TFO An OEM-compatible 100 Gigabit QSFP28 BiDi transceiver, rated to 40km over single-mode fiber, coded and 100% tested to link up clean in your switch — backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. Form Factor: QSFP28 Data Rate: 100G Reach: 40km Wavelengths: 1304.58nm TX / 1309.14nm RX Fiber Type: SMF Connector: Simplex LC DDM/DOM: Supported FEC — read before installing: RS-FEC runs inside this module. Leave host FEC off or on auto — do not force RS-FEC on the switch port; enabling host FEC will bring the link down. The far end of the link must also be a single-lambda optic of the same type with onboard FEC. Compatibility: Built to the QSFP28 MSA and coded for Cisco platforms; 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. In-stock items ship same or next business day. Cisco® is a trademark of its respective owner. TenFour Optics is not affiliated with, sponsored by, or endorsed by Cisco. OEM part numbers are used solely to identify compatibility.