Ieeded to replace a Wavlink port replicator (USB 2 ports stopped working) with something with the same connections. This was pretty much the only one available with the four 4 USB 2 and two USB 3 ports I needed but I didn't want to pay full price for a new one. I'm happy with a refurb so went for this one and am pleased with the result. Hooked it up and it worked first time - no messing about.