J4859D: HPE Aruba Networking 1G SFP LC LX 10km SMF Transceiver

Part J4859D (HPE Aruba Networking 1G SFP LC LX 10km SMF Transceiver): its HPE listing gives 1G speed over a SFP interface with a reach of 10 km.

J4859D specifications: Speed 1G; form factor SFP; connector LC; standard LX; reach 10 km; fiber SMF; part of the HPE Aruba / ProCurve switches product line.