AT-QSFP28-LR4 AlliedTelesis Compatible QSFP28 LR4 10km SMF Transceiver

The AT-QSFP28-LR4 is a QSFP28 module that carries 100G across single-mode fiber to 10km using the LR4 grade, terminated on a duplex LC pair. Coded to appear as a native part on Allied Telesis switching, it is hot-swappable and needs no host configuration to bring the port up. At a 10km reach on single-mode plant it fits data-center interconnect and building-to-building 100G aggregation, and it reports live optical diagnostics over DDM once the link is established.

• Form Factor: QSFP28
• Protocol: LR4
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: AT-QSFP28-LR4

Compatibility: Documented OEM compatibility (Allied Telesis published compatibility documentation): this module is accepted in 100G QSFP28 ports on the SwitchBlade x908 GEN2, x560 Series, and x950 Series. This module follows Allied Telesis'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.

Manufactured to MSA specification and verified on the bench before it ships. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. Orders placed today ship same or next business day.