What is the Sandstone QSFP28-100G-LR4-A?
The Sandstone QSFP28-100G-LR4-A is a QSFP optical transceiver module, listed by the manufacturer as "Arista Compatible 100G QSFP28, 100GBASE-LP4, 1310 NM, 10KM SFM LC, C - TEMP". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.