1-11
Cisco 819 Integrated Services Router Hardware Installation Guide
OL-23125-02
Chapter 1      Product Overview
  Hardware Features
  • Accessories, page 1-25
Note The WAAS Express feature is not supported. This feature will be supported for 3G and 4G interfaces 
with later IOS releases.
Platform Features for Cisco 819 ISRs
Table 1-4 lists the platform features comparison for the Cisco 819 ISRs.
Ta b l e  1-4 Cisco 819 ISRs Platform Features  
Platform Features
Cisco 819HG
Cisco 819G 
(with 3G)
Cisco 819HGW
Cisco 819HWD 
(with WiFi)
Cisco 819HG-4G
Cisco 819G-4G 
(with 4G LTE)
512 MB DRAM  Ye s — —
1 GB DRAM  — Yes Yes
1 Gigabit Ehernet 
WA N  p ort
Yes Yes Yes
12-in-1 serial 
interface 
Yes Yes Yes
256 KB of NVRAM 
storage
Yes Yes Yes
256 Compact Flash 
support in IDE mode 
(internal)
Yes — —
1 GB Compact Flash 
support in IDE mode 
(internal)
— Yes Yes
Cisco EnergyWise Yes Ye s —
Dual 802.11 a/b/g/n 
Radios with Cisco 
DFS, CleanAir, and 
Client Link support
— Yes —
Embedded 3G 
modem
Yes Yes —
Embedded 4G LTE 
modem
— — Yes
Environmental 
monitoring and 
temperature logging
Yes Yes —
Four ports FE 
interconnect switch 
support
Yes Yes Yes