32-bit color support. 8-, 15-, 16-, and 24-bit color are also supported.
128-bit encryption, using the RC4 encryption algorithm, as of Version 6.Older implementations suffer from a man-in-the-middle vulnerability, which can allow an attacker to decrypt the encrypted streams by recording the encryption key as it is transmitted.
Audio Redirection allows users to run an audio program on the remote desktop and have the sound redirected to their local computer.
File System Redirection allows users to use their local files on a remote desktop within the terminal session.
Printer Redirection allows users to use their local printer within the terminal session as they would with a locally or network shared printer.
Port Redirection allows applications running within the terminal session to access local serial and parallel ports directly.
The clipboard can be shared between the remote computer and the local computer.
Seamless Windows: Remote applications can run on a client machine that is served by a Remote Desktop connection. It uses virtual channel method, and available since RDP 5.
RemoteFX: RemoteFX provides virtualized GPU support and host side encoding and is being shipped as part of Windows Server 2008 R2 SP1.