kingwin multi function 5.25 lcd panel free sample
Update 2017-08-15 Additional TestingI did some additional testing after the tear down which revealed the USB pass thru on the first port and the valid USB 3.0 hub chip. I was very curious at this point as there was no reason that this should not perform at least as well as other devices have plugged into the same 19 pin header. Additional testing shows that indeed, this device does perform above USB 2.0 speeds for the USB ports. However, the card reader is definitely USB 2.0 and the USB-C port labelled as USB 3.1 is truly a USB 3.0 port with the USB C form factor.The issue was an add in USB 3.0 PCIe card that I had bought to add an extra 19-pin header for this device. In my testing however, I had directly connected the device to the motherboard 19pin, so I did not suspect this PCIe card as being the problem. However, it seems it was creating some angst on my PCIe bus which resulted in decreased performance of even my onboard USB. Removing that USB card allowed this USB hub to perform inline with expectations.I have added a star, though I still see the false advertising as unforgivable given that the card reader is USB 2.0.Update 2017-08-11 After Mfg CommentAfter the comments by the mfg, I did further investigation. I have attached photos to support that investigation. This investigation verified my assertion that the card reader portion of this device is __not__ USB 3.0 but rather is a USB 2.0 device. The card reader is supported by the Ascore AU6477DL, a USB 2.0 card reader chip, it is not capable of reading moder SD Cards at full speed.On the other hand, the USB ports seem to be in order, with the exception of the port labelled USB3.1, which is a USB C 3.0 port. The USB C connector does not make the port USB 3.1. The first USB 3.0 port is a direct pass thru from the 19 pin header, and should have no issues. I will do some additional testing to see if this proves true. The other USB ports including the USB-C port are connected to an internal USB 3.0 Hub supported by a VIA VL813, a legitimate USB 3.0 hub chip. There is no explanation for the low performance that I saw. I will do additional testing.Original ReviewI wanted to like this. I needed it to work well, it is a flop. I have always seen Kingwin as an excellent brand, albeit a bit overpriced. At this point I didn"t care. I am desperate for a high quality high performance card reader insert. This is not it.Immediately my hopes were shattered after examining it out of the box. There were 3 connectors, a 19pin for the USB3.0 and USBc ports. A Sata connector for the eSata port and a USB2.0 header for the card reader. Yes a USB2 header connector for the card reader ports meaning that performance of the card reader maxes out at USB 2.0 speeds 480 Mbps or 60 MB/s. I thought hmph.. well ok at least I will go from 2 front facing USB3.0 to 3 + a USB C style USB 3 port. So I installed anyhow and booted up and started to benchmark some SD cards, the main reason I need the card reader. I knew that using the card reader was pointless so I stuck with my Saitec USB3 reader and started running tests. The Saitec plugged into one of the previous 2 USB 3.0 ports, plugged into the same 19 pin motherboard header has no problem sustaining 90MB/s reads and writes on quality SD cards. So I connected the Saitec and ran a benchmark on what should have been a very fast card, and it capped around 40MB/s. I tried three other cards, with the same results. I tried the same cards in a HooToo USB C reader plugged into the USB C port and again the same results.I purchased a PCIe card with a 19pin header to work with this. Unfortunately my computer doesn"t seem willing to take another PCIe card, but if you need one this looks like a good option.http://amzn.to/2wIEzsdI do recommend this Saitec USB 3.0 reader though, it has worked very well for all but the most cutting edge SD cards.http://amzn.to/2vjHXvEConclusion. The card reader will only connect to a USB 2.0 header. The USB 3.0 ports seem to be managed by a USB 2.0 hub. All in all this was a waste. I"ll have to try again.
I"ve been thinking of getting a multi-card (sd, cf, ect.) reader for my PC, but all the ones I can find on Amazon plug into the USB header on your motherboard. I think my MOBO has an extra one, but I keep my PC in a weird place and I don"t like to open it unless I need to. I would prefer that they used one of the many SATA ports I know I have free, and am wondering why none of the ones I can find do.