https://airheads.hpe.com/discussion/hp-6600-24xg-j9265a-sfp-rj-45-compatiblity
HP 6600-24XG (J9265A) SFP RJ-45 compatiblity | Wired Intelligent Edge
Hi,I have a HP 6600-24XG (J9265A) switch, it has 24 SFP+ 10G ports, I need to get a 1000BASE-T via copper RJ-45.I have seen these transceivers: - HP X121 1G SF
hpsfp