What is the Sandstone QSFP-100G-SR1.2-ST?
The Sandstone QSFP-100G-SR1.2-ST is a QSFP optical transceiver module, listed by the manufacturer as "Cisco Compatible 100G QSFP28, 100GBASE-SRBX BIDI, TX832/RX918 nm, 100m MMF LC, DDM, C-Temp, BEIGE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.