Arista Networks QSFP-LR4-40G-I Compatible 40G QSFP+ LR4 Transceiver Module

The QSFP-LR4-40G-I compatible module is intended for Arista Networks platforms requiring a 40G QSFP+ transceiver. It specifies wavelength 1310nm, reach 10km with Duplex LC through SMF.

OEM Part Number: QSFP-LR4-40G-IHT Part Number: QSFP-LR4-40G-I

Product Highlights

• Compatible alternative to Arista Networks QSFP-LR4-40G-I
• 40G connectivity at 41.25Gbps (4x 10.3125Gbps)
• Optical wavelength: 1310nm
• Specified reach: 10km
• Duplex LC / SMF interface
• Operating temperature: -40 to 85°C (-40 to 185°F)
• Factory compatibility verification and optical performance testing before shipment

Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.

The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.

The module is programmed for equipment that recognizes the QSFP-LR4-40G-I part number. Before shipment, we check EEPROM identification, link establishment and diagnostic readouts, then verify transmit and receiver performance against the stated optical specifications. Host hardware and software revisions can affect third-party module acceptance, so customers can provide the switch model and software release for a compatibility check before ordering.

Quote HT part number QSFP-LR4-40G-I together with OEM part number QSFP-LR4-40G-I and the required quantity. Standard modules use our factory label; neutral labels, customer-branded packaging and project-specific compatibility coding are available on request. For mixed-brand installations, select the corresponding brand-specific page instead of assuming one EEPROM version fits every platform.

Each unit undergoes optical performance checks, compatibility verification and visual inspection before packing. Modules are supplied in protective blister trays or anti-static packaging and then cartoned for transport. Custom labels and project packing lists can be added for volume orders.

Standard products normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.