What is the output power per USB port?
1583635
I am not really sure how to answer that.. If you tell me how I would know, I'd be glad to tell you:) Thanks.
1629110
I think it's 8W per apple port and 5W per Android ports. It doesn't change watts depending on what is plugged in or not.
1723318
A USB port maximum output power is around 5W to 10W. A laptop may require 20W to 150W power. A USB port output voltage is 5V. Most laptops require 15V ~ 20V power. So there may be no way for you to charge your laptop from a power bank that only has USB port. Our USB cable and connectors are just cable and connectors, no circuit board inside. They just transfer power, do not change power. Best regards. BiXNet
745837
No. Maybe the info below helps. Package Contents * USB Plus Hub * AC Power Adapter * User Manual * USB Device Cable Technical Specifications Upstream Ports: 1 Downstream Ports: 4 Per-Port Voltage: DC +5V Per-Port Current: 500mA (max) (self-powered mode) Power Mode: Self-powered/bus-powered Operating Temperature: 5 C ~ 40 C Storage Temperature: -20 C ~ 60 C Enclosure: ABS Power Supply: Output: DC 6V, 2.1A Plug Size: 3.5mm (outer) 1.0mm (center) Plug Polarity: Center-pin positive
1016769
I have used two of my USB 3.0 ports to use it. One for power the other for data.
733804
The back of the box it came in says "It built USB output function can supply electricity to those devices power below 5.0V/500ma". It lists the Electrical Technology Parameters of this device as follows: 500 mA CC Current - 500 mA + or _ 5%, USB Interface Output Floating Voltage - 5.0V. The internet address of the maker is www.xtarlight.com. Hope that helps.
1011959
5 amps. But the power supply is 12 volts, so in reality the USB-devices you connect can pull way more than that since the USB ports are only 5 volts. Remember that volts multiplied with amps equals wattage (so 12 volts times 5 amps equals 60 watts). Nine USB ports providing a maximum of 0.9 amps times 5 volts equals 40 watts, and then you have a charger port of 2.1 amps times 5 volts which equals 11 watt. So in theory, if you fill up the entire device with USB-devices that can draw maximum power from all the ports, the maximal power draw should be around 51 watt, which is less than the power supply provides. Therefore, this hub should never give you any disconnects because of too huge a power draw, which was a frequent problem with my old USB hub.
1438474
Probably more than enough. A laptop is typically somewhere around 90-140 watts. Charging a phone through the USB port will draw up to 2.1 amps @ 5 volts = 10.5 watts. I have no idea on the printer, but it's certainly less than the remaining 250 or so watts. Assuming it's an inkjet, that is, and not a laser printer.
41530
Sorry, I do not know, I could actually never fully install this because I don't have available power on the power harness, at least with the correct connection. I am disappointed that without power this doesn't even seem to work for usb1 and usb2 as it should. This was a disappointment.
2095580
Very little. Don't plug a HD or scanner into it, or anything that draws a significant amount of power. Trying to drw much power out of one of the USB 2 ports can drag down the entire hub for that port. Plug things into it that you would plug into an unpowered hub.
1112803
pc usb ports typically put out 0.5amps. these power packs can do 1A and 2A, it probably can.
1930295
No. It has neither the connectivity nor the power. Any single USB device up to 2.1 amps, and 3.1 amps max output for multiple devices.
1890987
MANUFACTURER RESPONSE: Thanks for asking! 2.5A is the total power available from the power supply- NOT the amount of power available to ANY ports. To say that another way, you would have 625mA (.625A) power per port max when using all 4 ports. The max current draw for a device complying with the BC 1.1 specification from any given port is 1500mA (1.5A). Please note this full current draw would be available to only one device at a time. When charging 2 devices simultaneously, we would expect charging at a max rate of around ~1250mA (~1.25A)- assuming no current is required by devices in the other two ports. Sorry we can't offer a more clear explanation here- USB charging is really a complex topic where devices from different manufacturers have very different behaviors. To top that off, many devices actually negotiate with the host PC to determine what rate to charge at, so behaviors on these will vary depending on whether a host PC is on and awake versus when there is no host PC or when the PC is sleeping. A more detailed explanation of the history on how the industry got into this confusing state is here: http://www.maximintegrated.com/app-notes/index.mvp/id/4803 Hope this helps! Please let us know of any other questions by emailing support@plugable.com or visiting support.plugable.com Best wishes- Jeff Everett Plugable Technologies
1251474
Input: ac 100-240v ~50/60 hz 0.15a Output: dc 4.35v~ 350 mA~ +/-50 mA USB 5.2Vd.c 800 mA That's what's it shows me on the charger
103374
From the spec sheet...USB Output: DC 5.2V 2AmpUSB Input: AC 125V 50/60Hz 350mA
2095582
The standard is 500mA for USB 2.0 and 900mA for USB 3.0. Do the math, and you'll see that the power supply doesn't cut it for 24 USB 2.0 and 4 USB 3.0 ports. 24 x 500mA = 12A 4 x 900mA = 3.6A The power supply would need to be 15.6A at 5V. Since the power supply is only 4A at 5V, you're only going to be able to power four USB 3.0 devices (900mA x 4 = 3.6A) OR eight USB 2.0 devices (500mA x 8 = 4A). Perhaps Manhattan should do what Anker does and use a 12V adapter and whatever they do to undervolt/cut down their USB 3.0 9-port hub to 5V per port (that thing comes with a 12V, 5A power adapter! The brick is almost as big as most laptop power bricks!) Using the formula of Volts x Amps = Watts (5V x 15.6A = 78W), we can conclude that at 12V, only 6.5A would be needed (12V x 6.5A = 78W). It's a shame, though, as a 28-port USB hub is cool as all hell, but in practice, it doesn't work right unless you're using all self-powered devices (devices that have their own power adapters).
2221580
as it says in the description, USB input, 2 USB output, 1 micro USB output. Micro usb is output only