What is the Sandstone QSFP-H40G-AOC1M-ST?
The Sandstone QSFP-H40G-AOC1M-ST is a QSFP optical transceiver module, listed by the manufacturer as "Cisco Compatible 40G QSFP+, 1m AOC MMF QSFP+, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.