Cisco 48-port 10/100 PoE Stackable Switch.SF550X-48MP/SF550X-48MP-K9-UK
Cisco 48-port 10/100 PoE Stackable Switch.SF550X-48P/SF550X-48P-K9-UK
Cisco 48-port 10/100 Stackable Switch.SF550X-48/SF550X-48-K9-UK
