Perfect function to plug in old thumb drives, self powered usb 3.0 docking stations and keyboards into your usbc computer. work

Plastic housing but all functions OK. I used it to plug a usb hard drive and my keyboard and mouse into my new thunderbolt 3 laptop and it did not miss a beat. Probably not a good idea to draw 3 amps through the three usb 30. type a jacks by plugging in three 3.5 inch hard drives, but you should know that without me telling you.

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