The Port Multiplier (PM) Ultra is one of the most advanced external PMs in the market to connect as many as 5 eSATA storage devices to any computer via a single eSATA or USB 3.0 port. Built on the same ASIC deployed in our field proven NAS 4.0 adapter.
RAID configuration is set via a set of dip switches on the back of the unit or the included software utility. The drive and PM status are visually monitored by the LEDs on the front and back of the unit respectively or via the bundled monitoring software. Any drive failure or RAID error can be notified via audible alert from the on board buzzer and via email to an SMTP account. The hot swap capability of the PM Ultra also allows external hard drives to be conveniently attached or removed from the system on the fly without restarting the system. The PM Ultra is constructed in a heavy gauge metal housing with ventilation on the side for efficient heat dissipation and can be powered directly from USB port or an external power adapter. Comes with convenient mounting hole on the bottom and a small power adapter, the PM Ultra can be installed easily in various computing environment
For more detail information on Port Multiplier technology, please review the following URL link: http://www.sata-io.org/
Port Multiplier Ultra connection diagram
Attaching multiple units of Port Multiplier Ultra to system
Here's a convenient way to multiply direct-attached storage capacity on a laptop or desktop PC or a server.