Cisco - XENPAK transceiver module - 10 GigE (XENPAK-10GB-LR+-REF). Device Type XENPAK transceiver module - SC. Data Link Protocol 10 GigE. Device Type XENPAK transceiver module. Compatible Slots 1 x XENPAK. Form Factor Plug-in module. Interfaces 1 x Ethernet 10GBase-LR - SC x 2.. Condition: Seller refurbished : An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent condition. This item may or may not be in original packaging. See the seller’s listing for full details. See all condition definitions , Seller Notes: “This product has been tested and refurbished in house by one of our engineers. We offer a one year warranty.” ,