Detail overview
   Hpe J9991a 20-port 10/100/1000base-t Poe+ / 4-port 1/2.5/5/10gbase-t Poe+ Macsec V3 Zl2 Expansion Module :  
 Key Features : 
  Device Type : Expansion Module 
   Form Factor : Plug-in Module 
 Networking : 
   Ports : Gigabit Ethernet (poe+) X 20 + 1/2.5/5/10gbase-t (poe+) X 4 
   Connectivity Technology : Wired 
   Cabling Type : Ethernet 10base-t, Ethernet 100base-tx, Ethernet 1000base-t, Ethernet 10gbase-t, Ethernet 2.5gbase-t, Ethernet 5gbase-t 
   Data Link Protocol : 10mb Lan, 100mb Lan, Gige, 10 Gige, 5 Gigabit Lan, 2.5 Gigabit Lan 
   Data Transfer Rate : 10 Gbps 
   Features : Poe+, Macsec Support 
 Expansion / Connectivity : 
 Interfaces : 
   20 X 1000base-t (poe+) - Rj-45 
   4 X 1/2.5/5/10gbase-t (poe+) - Rj-45