Press the optical cable connector latch down, and gently pull out the optical cable. Pull down the SFP+ module latch into the open. Small Form-factor Pluggable modules (SFP module) are the workhorses of modern network connectivity, enabling flexible fiber optic or copper links between switches, routers, firewalls, and servers. Whether you're upgrading bandwidth, replacing a faulty unit, or reconfiguring your topology, knowing. Steps to install and remove OSFP and QSFP modules. Refer to the Cisco Transceiver Modules Compatibility Information for additional details on optical transceivers. Preparation Before Installation 1. Optical equipment is sensitive.