This module can be added to Cisco 2691 and 3725 routers. This module offers DES, 3DES, and the new Advanced Encryption Standard (AES). It supports hardware-assisted compression services, where bandwidth conservation may lower network connection costs. This module can provide hardware-based encryption services up to 80 Mbps 3DES performance in Cisco 2691 routers and 150 Mbps in Cisco 3725. (The maximum is based on a 1400-byte packet size).The AIM-VPN-II-PLUS Module provides all the Security features and benefits of the Cisco AIM-VPN-II Module but with added performance for AES 192 and 256 keys.