This universal DC power adapter has been designed as an alternative, back up or replacement power supply for StarTech.com's line of industrial USB hubs. 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 external terminal power adapter can also be used with any other devices that can support 20V power supply including a variety of StarTech.com Ethernet Switches and Serial Adapters. The ITB20D3250 is backed by a StarTech.com 2-year warranty and free lifetime technical support. More from the Manufacturer

• Supplies continuous power to electronic devices
• 3.25 A supports steady current availability needed to maintain standard powered device functionality
• Ethernet Switch device supported supports convenient integration with appropriate powered hardware
• AC Adapter with 120 V AC input voltage supports electrical compatibility with common power sources for dependable adapter operation
• Delivers constant 20 V DC to support stable and continuous device operation