This universal DC power adapter has been designed as an alternative, back up or replacement power supply for StarTech’s line of industrial USB hubs. This international AC DC adapter charger is designed to work wherever you are, and includes regional cords for NA/JP, EU, UK, & ANZ. The external 2-pin terminal block can also be used with any other devices that can support 20V power supply including a variety of StarTech Ethernet Switches and Serial Adapters. Compatible USB 3. 0 Hubs 10-Port Industrial USB 3. 0 Hub with External Power Adapter - ESD & 350W Surge Protection (HB30A10AME) 10-Port Industrial USB 3. 0 Hub with ESD & 350W Surge Protection (ST1030USBM) 7-Port Industrial USB 3. 0 Hub with External Power Adapter - ESD & 350W Surge Protection (HB30A7AME) 7-Port Industrial USB 3. 0 Hub with ESD & 350W Surge Protection (ST7300USBME) 4-Port Industrial USB 3. 0 Hub with ESD Protection (ST4300USBM) Compatible USB 2. 0 Hubs: 7-Port Industrial USB 2. 0 Hub ESD Protection & 350W Surge Protection (HB20A7AME) 7-Port Industrial USB 2. 0 Hub with ESD & 350W Surge Protection (ST7200USBM) 4-Port Industrial USB 2. 0 Hub with ESD Protection & 350W Surge Protection (HB20A4AME) 4-Port Industrial USB 2. 0 Hub with ESD Protection (ST4200USBM) The ITB20D3250 is backed by a StarTech 2-year and free lifetime technical support.