Products Description
Extreme Networks 40GB-ESR4-QSFP 40G ESR4 QSFP+ Transceiver

Technical SpecificationsModel:40GB-ESR4-QSFP Brand:Extreme Networks Product Type: QSFP+ pluggable optical transceiver
Speed: 40Gbps total (4 lanes ×10.3125Gbps) Wavelength: 850nm VCSEL Fiber: Multi-mode fiber OM3 / OM4 Max Transmission Distance: 300m on OM3;400m on OM4 Connector: MPO (MTP) 12-fiber female Standard: IEEE802.3ba 40GBASE-SR4 compatible, SFF-8436 QSFP+ MSA DDM: Digital Diagnostic Monitoring supported Power Consumption: Typical <1.5W Operating temperature:0℃ ~ +70℃ Installation: Hot-pluggable Part alias: AA1404006-E6
System compatibility
40GB-ESR4-QSFP is Extreme certified QSFP+ optical transceiver. Compatible with Extreme switches with QSFP+ ports including X480,X670V,X590,X690,X870 series. It can run native 40G uplink or breakout mode for 4×10GBASE-SR. Works with MPO-12 parallel multi-mode fiber trunk cables. Verified for SummitStack-V high speed stacking and spine-leaf fabric interconnection.
Function
40GB-ESR4-QSFP is extended reach 40G parallel multi-mode optical module for data center. It uses 4-lane 850nm VCSEL array to transmit 40G signal over MPO multi-mode trunk fiber. In breakout mode, each lane can work independently as 10GBASE-SR to expand 10G port quantity. Widely used for rack-to-rack 40G uplink, leaf-spine interconnection and high-speed stacking in data center. Longer distance than standard SR4 QSFP+ module for medium reach multi-mode fiber links.
Installation
Insert the QSFP+ transceiver fully into switch QSFP+ port. Connect MPO trunk fiber cable to module MPO port. Verify module identification, optical power and link status via ExtremeXOS CLI. Configure port breakout function if 4×10G SR ports required. Keep proper fiber bending radius during cabling.
InterfaceQSFP+ metal housing, MPO female connector, DDM diagnostic circuit, pin contacts for Extreme Networks 40GB-ESR4-QSFP.
FeatureOriginal Extreme Networks 40GB-ESR4-QSFP optical transceiver,40G ESR4 extended range,850nm multi-mode,MPO connector,support native 40G or breakout to 4×10G SR,DDM monitoring,hot pluggable. This spare module is used for data center 40G uplink and switch stacking fiber interconnection.
DiagnosticModule not detected: Confirm fully seated transceiver, check port status and firmware compatibility. Link down: Inspect MPO fiber end face for dirt/scratches, read optical transmit/receive power via DDM. Breakout port failure: Verify MPO trunk cable polarity and port breakout configuration. High temperature alarm: Check ambient temperature and ventilation inside rack. Link flapping: Inspect fiber cable damage, excessive bending or dirty MPO connector.
Product Brief40GB-ESR4-QSFP is Extreme 40G ESR4 QSFP+ multi-mode optical transceiver with MPO interface,classic spare for medium-distance 40G fiber uplink and breakout 10G expansion in data center.
DisclaimerAll parameters are for reference only and shall not be used as the basis for quotation. Goods are scarce, overseas delivery lead time is 3-7 working days. It is only used for equipment maintenance and renovation.