What is the Sandstone SFP-1GE-LH-ST?
The Sandstone SFP-1GE-LH-ST is a SFP optical transceiver module, listed by the manufacturer as "Juniper SFP-1GE-LH Compatible SFP Module, 1000BASE-ZX, 1GbE Single Mode (SMF)". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.