You can speak from the client side, server side
Client side such as: smart card (IC card), cell phone (SMS password), dynamic password card, dynamic token, USBKEY, biometrics (fingerprint instrument, iris, etc.) and so on
Server side: firewalls, isolation cards, network gates, vpn, ids / ips, antivirus gateway, anti-DDDOS equipment, web firewalls, SSL equipment, SVS equipment, load balancing equipment and so on
What are the information security equipments? DDOS equipment, web firewall, SSL equipment, SVS equipment, load balancing equipment, etc.