Expand your network with this HP/HPE Aruba compatible SFP transceiver module. It's a 1 Gigabit (1.25Gb/s) SFP that uses LC duplex connectors and operates over single-mode fiber (SMF) with a 1310nm wavelength. The max distance is 10 kilometers (about 6.2 miles), making it ideal for connecting switches, routers, or servers across buildings or campuses. It's a third-party compatible module from Keystron (model J4859D-KS) that's designed to work seamlessly with HP, HPE, and Aruba networking equipment without triggering compatibility errors. It includes Digital Diagnostic Monitoring (DDM) so you can monitor temperature, voltage, and optical power via your switch interface. The module is brand new in its packaging, made in the USA, and comes with a 1-year replacement warranty. It complies with industry standards like RoHS, IEC, and FDA. Plug-and-play installation: just insert it into an SFP port until it clicks. A cost-effective alternative to buying genuine HP modules, especially when you need several. Perfect for IT admins, data centers, or businesses scaling their fiber network.