Port Replicator 452-10859
It also gives you ease of mobility wherein you need not unplug and re-plug multiple peripherals to access your printer or other devices. This product is tested and validated with Dell Systems. It is supported by Dell Technical Support, when used with a Dell system.
Port Replicator : UK/Irish Advanced E-port II with 240W AC Adapter, USB 3.0, without stand (Kit)