Works as advertised -- after some confusion
352071
This is a very convenient little USB 2.0 hub that also lets you plug in SDHC cards for memory or to download your camera. My confusion came over what it charges. It WON'T charge the main device you plug it into (the "upstream" device), but it will charge your USB devices exactly as if you'd plugged them into your computer. I bought it to plug my beloved Microsft Natural (tm) keyboard and trackball into my tablet without running the battery down on the glowing lights in the devices. Using this I can switch the devices easily between my laptop and my tablet. And in fact the tablet is taking more and more of the work!
4322948
works perfectly.  Instructions are a little vague for some applications.
4592205
This product seems to work properly, although the instructions are of limited help in setting it up.
4616160
Works as advertised, a little complicated at first but it gets better once you get the hang of it
1022169
Not sure about product working as described.
1959459
performs wonderfully; more difficult to install than anticipated
2808100
Confusing to set up, but it works really nice.
4331265
The device worked as billed.  One thing I was not able to do was to hook up two devices that run simultaneously.  The switcher would get confused.  But overall, the product works and it was worth the purchase.

Visit: http://CollegeTidbits.com
1958637
I purchased the item (together with the companion current sensing block) to use to drive an hour meter for my tube stereo amp.  This is to keep track of the hours on the amplifier tubes so that they can be replaced appropriately.

Good news:  it all works fine, turning on the amplifier is sensed correctly and the hour meter runs.  No complaints so far.

Less good news:  there are detailed instructions for setting the sensitivity of the device, involving turning a pot until an led goes on and off etc.  None of the sensitivity adjustments seemed to have any effect at all.  When the power was off, the led was off no matter what you did, when the power was on, the led and the unit was on, no matter where you adjusted the pot or the high/low range switch.  If another buyer has a more subtle setup (e.g. the common issue of a component with a low power draw when it is off) this is conceivably a problem, unless this was just a single unit with a defect(or there was something about the setup instructions that I didn't understand--but I don't think so).

Having said all that, it was shipped quickly, it works fine in my application, and only a one star deduct for the slight remaining anxiety as to just what it is doing.
1420327
So far, it seems to work as advertised. No complaints!
3579665
The device works as advertised, but is not meeting my needs.  My problem.
2114079
Worked as advertised, but I bought this&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/OURLINK-600Mbps-mini-802-11ac-Dual-Band-2-4G-5G-Wireless-Network-Adapter-USB-Wi-Fi-Dongle-Adapter-with-5dBi-Antenna-Support-Windows-XP-Win-Vista-Win-7-Win-8-1-Win-10-Mac-OS-X-10-6-10-12-4/dp/B018TX8IDA/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">OURLINK 600Mbps mini 802.11ac Dual Band 2.4G/5G Wireless Network Adapter USB Wi-Fi Dongle Adapter with 5dBi Antenna Support Windows XP,Win Vista,Win 7,Win 8.1, Win 10,Mac OS X 10.6-10.12.4</a>&nbsp;for an older machine and it worked better
2538777
works as advertised, easy to install & set up
2763025
I have to admit that I was a little frustrated when I first got the timer as the instructions leave a lot to be desired. I am a pretty handy person but couldn't make sense of any the diagrams. Luckily I found another reviewer who took a photo of his setup. Here is my finished system with labels. I hope this helps people avoid confusion and set this up a lot faster.

#1 and # 3 are connected to one another and go to the (+) positive  battery or source
#2 is connected to the (-)negative battery and negative line of the device
#4 is the (+)positive feed of whatever the timer is going to turn on. This is the line that is activated by the timer.
390724
Fairly simple setup, and works. Situation: recently "cut the cord" by canceling Cablevision and turning in the CableCard to my Ceton 4-tuner USB box. The thing is, I discovered entirely by accident that even though I no longer paid for cable TV, I actually still received the local channels - they must be included with the internet service, but Cablevision doesn't exactly go out of their way to advertise that (they would have gladly had me pay $12.95 a month for channels I already get). But even though technically I could get them, the Ceton was just terrible at receiving them; it would get confused (especially when trying to record two things at once) and required a laborious reset and rescan process. Don't get me wrong, the Ceton is a fabulous five-star device when running off CableCard, I suspect they never thought anybody would ever use it for ClearQAM cable signals and so while it technically lists QAM as one of its capabilities, it doesn't look like they put much effort into it (and yes I have all the latest drivers and firmware). I found a Microsoft Windows 7 patch whose description indicated it was what I needed, but I kept getting the helpful message "This update is not applicable."

So I replaced it with the HDHomeRun, but not without some trepidation: according to the product description, I had no reason to think it would work at all! For starters, according to the product comparison table it is SD not HD: yes, but only when you are using it wirelessly; a PC or laptop that is hardwired to the network receives glorious HD just fine. And more importantly, according to the Amazon product description it MUST be connected to an antenna. It's even repeated right on the box: Antenna >required<. Except that it's not: "antenna or television cable carrying QAM signal required" would be more accurate.

The instructions tell you to log onto SiliconDust's web site to download the drivers and set things up, so hopefully they will stay in business (I filed away the driver for a rainy day). And getting ClearQAM to work was a bit of an [undocumented] hassle: first set up the channels ON THE WEB SITE (EDIT: or, as I accidentally discovered, the Home Run program that the setup will install on your desktop), and then and only then go into Media Center and run TV signal setup, otherwise you get a Tuner Not Found error. All in all it took about an hour to set up, although most of that time consisted of the Web Site and then Media Center scanning for channels and I didn't have to be in front of the PC during that time. And worth the effort: unlike the Ceton, the HomeRun instantly switches from channel to channel and it has thus far faithfully recorded my local shows. (EDIT: once in a great while it pops up a "cannot record" or "tuner busy" message even though only one other thing was being recorded or watched. I have Media Center set to start recording several minutes in advance and while the message is a bit disconcerting, so far I don't think it has actually failed to record a show, I think it just keeps trying until whatever the error is clears itself.) And unlike the Ceton, it's on my home network so it can be used by any of my computers.

Speaking of which, one of the selling points is that it will also transmit wirelessly to any device, including phones and tablets (SD only for this particular version, it appears they have another model that does wireless HD as well). I have not tried that, because not mentioned in the instructions or product description is that you must first download the SiliconDust app to your tablet - and it is >not< free!

Five stars for functionality, a star off for being a bit confusing and misleading. If my main use was going to be to watch TV on my tablet I would have knocked another star off for price gouging: everything needed for the gizmo to do what it is advertised to do should be included in the price or at least make it absolutely clear up front that you are going to be required to spend more money to get the functionality they're advertising.
4082568
THIS WORKS AS ADVERTISED --VERY HAPPY WITH THE PURCHASE .
2885767
good product, it does what it promised, instructions are not clear, we had to contact Asia several times for service help