Router  : Cisco 1800/2600/2800/3700/3800/3900/7200/7500/7600 /12000 series network router
Switch  : Cisco 2918/2950/2960/3550/3560/3750/3750E/4500/6500 series network switch
Firewall  : Cisco ASA series and PIX series 
Cisco module  : inseted in router and switch, GLC module and IP Phone Accessory  : Power supply, cables, memory, flash card and so on.