How many watts (or volts + amps) is this hub? I'm trying to calculate power draw for sizing an UPS unit.
2068035
You can approximate your UPS requirements by examining the power supply for your hub. This isn't the same as measuring actual power draw (which would be lower). If it's 5V @ 1A as N. Ramon suggests, then you need 5 watts. It is NOT going to be 1A @ 120v as IPPete stated - that's 120 watts which is far too much for an embedded device to require. I assume he misread or made a typo. This will run forever on the smallest UPS. But you'll want to be sure your UPS can also support your cable modem, and wireless router - these use more power (but not much... you can still get away with a small UPS if you need a few hours coverage). If you REALLY want to measure power draw, you want to buy a 'Kill a Watt" outlet device and measure wattage over 2-3 days, then divide by the days. This is totally unnecessary but it's how you know what the power draw is for everything you own.
2068036
It's powered off of USB so it's 5 volts, and if I recall correctly it wants a full amp.
2068037
I installed the the unit and promptly left town so I cannot check the rating on the transformer to confirm, but I would guess 1 amp @ 120v would be a good target. Keep in mind that the current hub is fairly usless without a working internet connection. This is supposed to improve over time.I can say that the hub recovered gracefully after a power outage.
936557
This is just the aux battery, NOT the UPS. I have the 1500 Watt UPS and this aux battery that my 47"TV, DVD, Cable box and speakers are connected to. During a recent power outage the system ran for more than 90 min until the power returned - grand kids were entertained.
1298640
I it is meant for electronics. Not higher amp appliances. It will keep them running for while until power comes back on. How long depends on how many items are attached. But don't expect any ups to run more than 30 to an hour.
1623113
Volts x Amps= watts so watts divided by voltage = amps. 80/12=6.66 amps. It certainly draws quite a bit more during startup.
547328
I can't measure it because it's installed inside a UPS, but please look under product details - the seller has put the dimensions there. Best of luck with your project!
484565
Uninterrupted Power Supply. Yes, you should be ok to use this with a UPS. It really comes down to what your plugging into the whole system that will dictate how the UPS acts.
2233106
Sorry for the late reply:I think the wattage is calculated using an algorithm (speed, incline, etc.). I have never used a power meter before so I am afraid I cannot comment on how accurate it is.
767760
Hi Sheena: Jeffrey beat me to it. The only caution you want to take is to not treat this a 4 ports each capable of 15 Amps.With best regards
1837929
In the switching adapter there are informations that may help you:OUTPUT : +5v - 4AThis output is the hub input.
282033
Ideally would be 24 watts, without considering conversion losses etc. Being a switching supply, it should be close to the that (basic formula is P=I*E, P is power, I is current, E is volts).
511046
Buy a UPS of the type you use on your computer. All functions are there. Size it to how long a power failure you want to ride through.
1837928
In the switching adapter there are informations that may help you: OUTPUT : +5v - 4A This output is the hub input.
1387239
The PSU has 2 six pin plus 2 connectors on the same cable. I used it to fire up a i7 920 with 1 HD6450, powered by the board. there was not enough juice. Removed it, and have not found a use for it yet. You should be in the market for a single rail, 750-800 watt, with 60 plus amps on it. This power supply doesn't produce good numbers after 35% load.
377432
The hub has a 12 volt, 2 amp power supply. I assume the amp capacity is divided among the 4 ports. You'd need to find out what the current draw is of the external drive to be sure.
126420
The spec sheet (http://www.cyberpowersystems.com/products/ups-systems/pfc-sinewave-series/CP1500PFCLCD.html?selectedTabId=specifications&imageI=#tab-box) says the battery is 8.5AH @ 12V, so 102WH (Watt Hours). Arbitrarily say that you can convert from battery to AC at 85% efficiency, so you have about 86WH. 86WH / 120W = about 0.72H, or 40 minutes, best case. I couldn't find specs on the max wattage allowed per power outlet, but I doubt that the limit is 120W...
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.
1545207
Well, my computer is using 300 watts right now and the UPS says it can run for 20 minutes on battery. If the conversion holds up, that'd be about 100 hours.