What is the Sandstone JNP-QSFP-40GE-IR4-ST?
The Sandstone JNP-QSFP-40GE-IR4-ST is a QSFP optical transceiver module, listed by the manufacturer as "Juniper Compatible 40G QSFP +, 40GBASE-PSM4-IR4, 1310 nm, 2km SMF LC, DDM, CTemp, YELLOW Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.