What is the Sandstone CVR-QSFP-SFP10G-ST?
The Sandstone CVR-QSFP-SFP10G-ST is a QSFP optical transceiver module, listed by the manufacturer as "Cisco compatible 40G QSFP+ to 10G SFP+ Adapter Converter Module". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.