What is the Sandstone SFP-H25G-CU3M-ST?
The Sandstone SFP-H25G-CU3M-ST is a SFP optical transceiver module, listed by the manufacturer as "Cisco Compatible 25GBASE-CU SFP28 Cable 3 Meter". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.