I am selling this item because it is no longer needed in my home. I am not familiar with the product, so please check the details yourself. It is new and unused. I will ship it via Nekopos. Price: 3990 yen Product Name: OPSTRAN 10GBASE-LR SFP+ Optical Transceiver Module Compatible with Juniper QFX-SFP-10GE-LR EX-SFP-10GE-LR SRX-SFP-10GE-LR 1310nm 10km DDM LC Duplex SMF The following is quoted from the product page: 10GBASE-LR SFP+ Optical Transceiver Module 1310nm 10km DDM LC Duplex SMF, Max Power Consumption 1W Verified with actual equipment to ensure excellent performance, quality, and reliability. Compatible with various brands of equipment. Excellent diagnostic capabilities with digital optical monitoring. Features high reliability and robust physical protection with a TO package, IEEE 802.3ae compliant. Hot-pluggable SFP+ MSA and RoHS compliant. Optical interoperability with 10GBASE XENPAK, X2, and XFP interfaces on the same link.