This product is either discontinued or we cannot get that from suppliers.
Cisco C819H-K9 C819 M2m Hardened Secure Router, Gigabit Ethernet, Port-5, Form Factor Desktop/Wall Mountable, Network 10/100Base-TX/10/100/1000Base-T, Network (RJ-45) Ports-4, Input Voltage110 V AC/220 V AC, Maximum Memory Supported1 GB.
The Cisco 819 ISR is available in both non-hardened (Cisco 819G) and hardened (Cisco 819HG) versions. Both models include support for 3G up to 3.7G wireless WAN (WWAN) speeds.