Bests & Worsts Reviews from Amazon

This review is for the "Kingwin KW525-3U3CR Multi-Function Super Speed USB 3.0 Hub". I've had a it a few months. (1) All the card slots hub through a USB 2.0 circuit board and USB 2.0 cable to your mobo. The product description fails to hint at this, and even makes it sound like the cards read at USB 3 speed -- they don't. This was a major disappointment, since I bought this device as USB 3.0 card reader. (2) One of the USB-A/3.0 ports (the far left one) is just the female end of a USB-A/3.0 cable glued up against the front panel of the Kingwin. This turns out to be a good thing, since it is the one port that ALWAYS works for me (for data transfer). (3) The rest of the ports -- [a] the other two USB-A/3.0 ports, [b] the single USB-C port, and [c] the eSATA port -- all hub through a second larger circuit board. This board connects to one of two branches of a 20-pin USB3.0 cable from your mobo. So, just be aware that even WHEN those ports are all working (mine come in & out of connecting) you can't use all of them at full speed, since they hub onto one lane. (But then everyone does this, since mobo's have few internal USB3.0 ports.) (4) As mentioned in 3, the mid and right USB-A/3.0 ports are hit-or-miss. Sometimes W10 sees them, but often W10 sees nothing I connect here (SD card readers and such). Another reviewer's observation that they always work for charging seems pointless, since who buys a USB3.0 hub to charge things? I have dedicated high speed USB chargers* for that. I need a USB3.0 hub to move data. (5) The USB-C port on my Kingwin KW5250-3U3CR has never worked**. I know my mobo port is USB 3.0, not 3.1. Maybe that explains it? But the product description here claims backward compatibility with USB 3.0. If so, then the USB-C port should work in my build (at 3.0 speeds, not 3.1), but the USB-C port doesn't work at all. So, it seems either this port is bad, or the backward compatibility is failing. (6) The eSATA feed from this Kingwin device has its own internal SATA cable to your mobo. (I never tested this out, since I have chassis eSATA already, and no more spare SATA ports on my mobo.) (The good news here is that the design uses this separate channel for any eSATA data traffic, so you're not further loading up that one USB3 port on your mobo. I doubt any products would do this differently, since it would be more work for the hub's little board to convert SATA to USB3, but I mention it to be thorough.) _______________________________ * Specifically, the Anker PowerPort Speed 4 Wall Charger; it's the best USB charger I've ever owned, and beats charging off a PC by a mile. ** Update: on 11 Aug 2018, it worked briefly once, when I had a micro-SD card reader connected during boot. I'd had this connected dozens of times during boot before, so that was not the thing that made it work this time. And, just to test it, I removed the card then reconnected it, and it failed to register.