This Juniper Networks QFX-SFP-10GE-ER SFP+ transceiver provides 10GBase-ER throughput up to 40 km (24.9 mi) over single-mode fiber (SMF) at a wavelength of 1550nm using an LC connector. This easy to install, plug-in transceiver module includes Digital Optical Monitoring (DOM) support. It is designed for the Juniper Networks QFX3500 Switch. The Juniper Networks QFX3500 device is a high-speed, multipurpose switch especially designed for next-generation data centers. The QFX3500 can be configured as a standalone switch, a Node device in a QFabric system, or as a member of a QFX Virtual Chassis.