crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

Your system is one of these: [https://everymac.com/ultimate-mac-lookup/?search_keywords=2267|EMC 2267]

This series is only able to go to El Capitan OS-X 10.11.x

crwdns2915684:0crwdne2915684:0:

open