computer hardware; communications equipment, namely, adapters, electric switches, computer network bridges, connection cables, servers, and routers; modems and modem cables; VPN (virtual private network) hardware; VPN (virtual private network) operating software; RAID (redundant array of independent disks) controllers; computer back-up and storage hardware; computer back-up and storage software; computer hardware in the fields of security monitoring, access control, information flow control, ...