How much power is supplied to the hub itself? What about a maximum "per port" power allotment?
257112
The USB-2 hub itself provides 0.5 amps at 5V. The external power supply (included) provides 2.0 amps at 5V. So, the 2.5 amps total, is divided into 7 ports or total of 2.5 amps for power draw (like 1 amp for Port-1 plug-in and 1.5 amps for a Port-2 plug in). Usually USB devices draw less than 0.5 amps (except external HDD or external DVD+RW).
763236
Each port is rated to supply 500mA. Here's a link to the manual if you want to look for more info. http://www.belkin.com/conserve/user-guide/WEB_F7C008_10MS041_ConserveValet.pdf
1930222
I know they require a lot of power, I can't tell you the exact amount. I would definitely buy a powered USB hub.
434836
You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the driving port. You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the... » Read More You must always use the power plug for USB hubs. Any product claiming to be a bus powered hub would be violating the USB specifications. There is a specified minimum current for each hub port and a specified maximum current for a bus powered device. A hub must be able to supply the minimum required power to each of its ports simultaneously. If it were to be bus powered, the only source of the power would be from the port that is driving it. The sum of the minimum current for the hub's output ports will exceed the specified maximum device current that the hub would attempt to pull from the driving port. « Show Less
1482729
Almost - it has 48 rj45 ports, all have PoE - the first 8 are high powered, but higher-power is probably not what you want this for unless you only have a couple devices, the total power for all ports is 380Watts. The "uplink" ports are SFP slots, not usable unless you get SFP Gbics (fiber) (or copper modules if you really want that) - they are NOT SFP+. so limited to 1Gbps per SFP.
1107085
When I tried to pull that much current through this hub... it shorted out, and destroyed every usb peripheral that was attached to it. I believe by the power ratings it might work... but i wouldnt risk it.
1299746
Thank you for your question. This hub can function directly with USB cord connected. Power supply is not necessary when using low power consumption devices. Should you have any questions don't hesitate to contact us again. Thank you.
1098103
I wouldn't personally, I'd just get a 12V to 5V power supply. This would be used if you need an odd voltage. Plus it doesn't have a whole lot of available amps. If your trying to power a hub with lots of devices attached, I'd get a bigger supply.
2022009
It has no 'amps' per se. This is a passive,not powered, hub so it will be able to source no more total current that the USB port that it is connected to.
95052
Yes. The manual clearly states that external power is required at all times. USB 3.0 ports are supposed to provide up to 900 mA, each, so requiring an external power source for hubs is pretty much written in stone. Also, it is worth noting that older computer systems probably do not have USB 3.0 ports built into them. My own laptop is a 2011 ThinkPad, and I had to buy an adapter card to get the support.
755584
Puts out the same 500ma (460-466ma) your PC does, so if it will charge with that then it will charge on the hub just plugged into the AC Power.
872300
According to one of the reviewers it's 2.5amp. See most helpful review - sorry don't remember reviewers name. He (or she) states: "The hub includes an AC power adapter (input: 100-240V, 50/60Hz) with output of 5V~2.5A (12.5 watts)"
650930
I'm not sure about the amp numbers, but I'm using the hub with 2 USB3 portable drives, 1 USB2 Ethernet, USB keyboard/mouse, and USB/serial port, sometime plus more peripherals at the same time, without any problem.
244424
Yes, and that was the main reason I bought this. I run my Pi, an external HD powered by this, and a WiFi dongle from the hub, have not had any power issues so far (over 6 months running).
1555908
Thanks to all. I also meant to inquire as to whether a powered hub would be better than the one noted. But based on these comments, I'll go with this more affordable hub. Thanks again.
1519018
I don't think this hub is built to deliver that kind of power. All my external USB hard drives are separately plugged into the A/C. At minimum, your drive would probably have to be plugged into multiple USB ports.
95051
Hi D. Lee,This is a self-powered hub, please be sure the supplied power adapter is plugged always. After that, please press the power button, and you may see from the port connected with device to see if the hub is on or off. If there is any other concern or issue, you are welcome to contact our support team with your valid order#, we will try our best to assist. Anker Team1-800-988-7973 support@ianker.com Mon-Fri 9am to 5pm(pst)