AT-QSFPLR4 AlliedTelesis Compatible 40G QSFP+ LR4 10km SMF Transceiver

The AT-QSFPLR4 is a QSFP+ optical transceiver compatible with AlliedTelesis platforms.

• Protocol: LR4
• Fiber Type: SMF
• Reach: 10km
• Connector: Duplex LC
• OEM Equivalent: AT-QSFPLR4

Compatibility: The AT-QSFPLR4-TFO is TenFour Optics' compatible equivalent of the Allied Telesis AT-QSFPLR4, coded per order for your platform. Allied Telesis lists the AT-QSFPLR4 for use in 40G QSFP+ ports on: SwitchBlade x8100 Series, SwitchBlade x908 GEN2, x550 Series, x560 Series, x930 Series, and x950 Series. Add your switch model and OS release in the order notes, or email 10.4@tenfouroptics.com, and we confirm coding before it ships.

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.