What is the Sandstone QSFPP-40X10GE-SR-ST?
The Sandstone QSFPP-40X10GE-SR-ST is a QSFP optical transceiver module, listed by the manufacturer as "SR-ST - Juniper Compatible 40G QSFP+, 40GBASE-4x10GE SR, 850 nm, 300m MMF MPO12, DDM, C-Temp". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.