This 5-port 10/100M Ethernet Switch (DCSW-1005) is another innovation by Dualcomm that offers unique and low cost solution for any network applications where port-mirroring is required. Port-mirroring used to be a feature in most expensive managed switches requiring a series of software configurations, but DCSW-1005 makes it plug and play without any software manipulations at a much lower price point DCSW-1005 also is engineered with a efficient power circuitry capable of receiving power on a USB port and to operate reliably with up to five Ethernet connections at full speeds. With DCSW-1005, an otherwise heavy and bulky AC/DC power adapter becomes not necessary! For home or small business users, DCSW-1005 can be best used for a cost-effective packet sniffing setup to record VoIP calls. For IT professionals, DCSW-1005 is surely a favorite gadget that soon will be found in their tool bags!