What is the Sandstone JNP-QSFP-100G-PSM4-ST?
The Sandstone JNP-QSFP-100G-PSM4-ST is a QSFP optical transceiver module, listed by the manufacturer as "Juniper Compatible 100G QSFP28, 100GBASE-PSM4-IR4, 1310 nm, 500m SMF MPO12, DDM, C-Temp, YELLOW Latch". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.