QFX-QSFP-40G-ESR4 Juniper Networks Compatible 4X10G-SR QSFP+ 850nm 300m MTP/MPO DOM Transceiver

This means the product was tested and repaired as required to meet the standards of the refurbisher, which may or may not be the original manufacturer. Any exceptions to the condition of the item outside the manufacturer’s information should be provided in the listing, up to and including warranty details.