What is the Sandstone QSFP-100G-LR1-BXD-20KST?
The Sandstone QSFP-100G-LR1-BXD-20KST is a QSFP optical transceiver module, listed by the manufacturer as "CISCO Compatible 100G QSFP28, 100GBASE-LR1 BXD, TX1310/RX1290 nm, 20km SMF LC, DDM, E-Temp, BLUE Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.