Just curious, is the usb hub on the 2408WFP monitor a powered or unpowered hub?

Noticed there are usb hubs being sold that have an adaptor to supply power to the devices to high power devices that do not have external power supplies eg. 2.5" external hdds, but its not immediately obvious if the 2408WFP supplies power directly from the monitor power.

Just wondering if I could power several 2.5" external hdds off the 2408WFP's usb hub. Thanks.