What is the Sandstone H-SFP-10G-ZR-ST?
The Sandstone H-SFP-10G-ZR-ST is a SFP+ optical transceiver, listed by the manufacturer as "10GBase-ZR SFP+ Module ,1550nm,80km Huawei Compatible". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.