ATEN CL5716I User Manual page 163

Encryption
These flexible encryption alternatives for keyboard/mouse and video data let
you choose any combination of DES; 3DES; AES; RC4; or a Random cycle of
any or all of them.
Enabling encryption affects system performance – no encryption offers the
best performance; the greater the encryption the greater the adverse effect. If
you enable encryption, the performance considerations are as follows:
RC4 offers the least impact on performance; DES is next; then 3DES or
AES
The RC4 + DES combination offers the least impact of any combination
Chapter 10. Device Management
147