Amazon.com: Cisco SG20050P 50 port Gigabit PoE Smart Switch (SLM2048PT) 24 Port and 24 Poe Ports with Additional 2 Combo Mini GBIC a Total of 50 Ports : Electronics
Full Gigabit Ethernet 44+4 SFP combo ports and 2 10G uplink slots Laye – Fosco Connect
Dotcom Computers: What is a Network Combo Port?
What is the difference between the SFP port and the Combo port? - Optcore