https://optics.carritech.com/optical-transceivers/optical-transceivers/qsfp28/100g-duplex-qsfp28/10405-er4l/
Extreme Networks 10405-ER4L Compatible 100GBASE ER4 QSFP28 40KM
Mar 12, 2026 - Extreme Networks 10405-ER4L Compatible 100GBASE-ER4 QSFP28 1310nm 40km Duplex SMF Optical Transceiver. Lifetime Warranty. In Stock.
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https://www.etulinktech.com/odm-qsfp-100gbase-er4l/
ODM QSFP 100GBASE ER4L from ETU-LINK - Factories & Manufacturers
ETU-Link Technology Co., Ltd. provides high-quality ODM QSFP 100GBASE ER4L solutions, ensuring reliable performance for your networking requirements....
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https://metrosalessolutions.com/configuration/er4l/
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