What is the Cisco QSFP-100G-SM-SR?
The Cisco QSFP-100G-SM-SR is a QSFP optical transceiver module, listed by the manufacturer as "100GBASE CWDM4 Lite QSFP Transceiver, 2km over SMF, 10-60C". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
