This listing is for(1) ARISTA QSFP-100G-LR4 100GBASE-LR4QSFP transceiver Genuine 10km XVR-10068-21. This item is new factory packaging, and in good working condition.We’ll provide a 60-day warranty. We do not provide any additional software orany other parts with this item unless expressly stated above. When applicable,any configuration, software, password issues, and compatibility for particularpurposes are the Buyer’s responsibility and are not covered by the "NODOA" warranty.