![]() You can calculate that quickly: Ampere rating of the power supply So if you get a hub with 10 ports and a power supply with 2.5A you will only be able to use half the ports.Īlso you may want to cool your Eruptors at one point, so keep the position of the ports in mind too so you do not have to get a fan for every single Eruptor but can cool down a bunch of them with just one fan. So do not get fooled by USB hubs that come with 10 Ports but a power supply with 3A. You may wonder: “Why would they sell them that way than?” – well a current draw of 500mA is the maximum in the USB specification, but not all devices max that out, for example a mouse or keyboard draws far less than the maximum of 500mA. So you would probably not run into any problems when using only mice, keyboards and flash sticks on such a hub.ĭaisy chaining is the process of plugging in one USB hub into another. If you want to do that, keep in mind you will need one extra USB Port. But be aware that there are limitations with daisy chaining. Now you have different possibilities to set the chain up, you could use 4 Hubs and plug each in the Hub before it _ _ _ _ _ Per specification one can attach up to 127 devices to a single USB port. According to the USB specification, the daisy chain can not be more than 5 hubs deep, the first hub being the USB port itself. Hub 4 is the last Hub in the daisy chain, you can not attach more hubs to this one, however you can attach more hubs to Hub 1 to Hub 3. ![]() With a setup like this you can easily max out the 127 device limit with Hubs having 7 ports each. I was reading up a lot of reviews and ended up with the D-Link 7 Port USB Hub, it comes with a 3A power block and a lot of people in the mining community seem to use this Hub. You should be able to power 6 Eruptors but I think its best to power 5 Erupters and an additional USB fan to cool them down since they sit next to each other and will produce quite a lot of heat. The other device I am keen for is the Anker 10 Port USB Hub. It comes with a 5A power block but only 9 of the 10 ports are full USB ports. ![]() The last port is just for charging or for a fan which comes in handy. So you can power 9 Erupters and a Fan to cool them down. I also think that this is a very stylish device.īe aware that since this is a USB 3.0 Hub it will not work with the raspberry Pi, this is also the reason why I settles with the D-Link hub.
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