Topic: [ANN] FutureBit Moonlander 2: The Most Powerful and Efficient USB Stick Miner! - page 26. (Read 82994 times)

I ended up the USB 2.0 7-port hub from Plugable. Same as the USB 3.0 but $10 cheaper. You don't need USB 3.0 as the external power is same on the USB 2.0 versions.


You can try, but sounds like three Moonlander2 will work best. I was planning in using 4 Moonlander2 with this, but worried about Port 5,6,7 as two Moonlander2 will share one regular. Not sure if there will be enough watts for port 5, 6, 7.

https://bitcointalksearch.org/topic/m.17921042

do you need a partner with $ to ramp up production?

This device looks interesting. I may place an order and try one.

difficulty soars, price falls, omfg!!!

I see ASICPUPPY and Holybitcoin is sold out, is it too late to reserve or purchase 1 or 2 of these?

Vitalik also stated that they will change the algo if they see an asic coming out.
For the gpu-guys it's a software-update - for the ASIC it's a death-sentence

 ETH isn't going to be POW long enough for any ASIC miner to pay off at this point, unless someone started working on one many MONTHS ago and got it to market TODAY.
 Also, the "memory hard" factor of the altorithm and very high AMOUNT of memory needed to run that algorithm would make any efficiency gains from going ASIC fairly minimal at best, and the cost wouldn't be all that much better than a GPU rig for similar hashrate.

 GPUs aren't the only devices on the market that use GDDR - one of the 2 current "game consoles" also uses it (XBox One line I think, not the PS4) to feed it's custom AMD APU with for both the GPU *AND* the CPU sides.

 A "pure ETH" ASIC would actually need more like 4GB (possibly MORE if it's intended to be viable on the ETH spinoffs like ETC for more than a couple years).

 Bitmain will be more likely to pay attention when the A4+ actually starts shipping, I forget how the D3+ compares to the BW.com L21 (pretty close as I recall but I think the L21 narrowly loses) but the A4+ IS ALSO specified to be a hair more efficient than the L3+ and is a major miner from major competition.

Hey Jstefanop,

you might wanna tell bitmain to stop their false advertising, they still claim that the L3+ is the most efficient litecoin-miner
You have 1.3 W / MH which meant an L3+ with 500 MH built with your ASIC-chip would consume 650 Watts. 700 if your controller-board and the fans were really shitty.

Yea its already been done..a GPU attached to a USB riser

There are no ASICs for Ethash since the bottleneck is the memory throughput and the 2GB+ dag size, and currently GPUs have the fastest memory of any compute device that can store that much data in memory. You could theoretically make a very efficient eth ASIC, which would essentially be a GPU with the cores optimized for ethash, but since the 2GB+ ram needed would already cost 10-20 watts, at most you could probably reduce power consumption from ~120 watts to maybe 25 watts for the same hash power and probably even more cost than a GPU. The power savings alone would not be worth it, since ~30MH for a single eth ASIC would never ROI the development costs.

Scrypt is actually a "similar" algorithm to Ethash, but how its structured allows you to make tradeoffs in memory size vs compute, and since compute is cheap scrypt ASICs have essentially reduced the memory requirements per scrypt core to 32kb. The ASIC used in Moonlander 2 has 64 scypt cores, which comes out to ~2MB of essentially L2 cache memory on the die. Just this 2MB alone actually makes up >50% of the ASIC die. You can't make this memory tradeoff with Ethash, so you can quickly see why a pure Ethash asic with its 2GB of memory needed is nearly impossible

Is it technically possible to build usb ETH miner like this?
Would it be impossible due to ASIC-resistance feature of Ethash?

These are great news jstefanop.  Thanks for the update on the 2nd batch.
Hope I can secure my order this time.

Im working on scaling up production...im a one guy shop, and I don't have the resources to risk making a massive batch that I can't deliver. Which is why the first batch was relatively small, but as soon as the first batch is shipped out and everything goes smoothly ill be able to ramp up fast.

Have to keep in mind that the main bottleneck are the ASICs...I secured as many ASICs as I could afford, and all of that came out of my pocket with zero pre-order money. For second batch ill have more capital to work with and be able to order a larger number of chips.

If you didn't get one there will be another chance!

 Why do you think you need a SSD for that?
 Current hard drives have write speeds that are FASTER than 100MB Ethernet can transfer the data.

Use dual plug this gives more power for each stick.

I want one or two of these.  Pm sent to op

what about short USB extender cables?
0,5 meter .. and plug it in?
you can place them all in a row and plug the cables into the hub

Take a look at this one from Plugable 7-Port USB 3.0 SuperSpeed Charging Hub with 60W Power Adapter with BC 1.2 for $40. I'd be comfortable and confident installing 4 Moonlander 2 (ML2) spaced apart. Manufacturer said in a review comment, "When the hub is connected to the computer the hub is capable of a maximum of 1.5A under the USB-IF Battery Charging 1.2 standard." So, 5V * 1.5A = 7.5 watts. If ML2 is 1.4 to 1.5 watts per megahash, then 5 megahash is 7 to 7.5 watts.  This HUB can fit 7 USB devices, but we will have to see if ML2 can fit in the provided space and whether excess heat can be controlled adequately.

I know of another 10 port USB HUB and it is 10W per port, but they want $700 for the unit.

you built a fan into it.  damn  looks nice.

got one for me?

I hate to repeat this every couple pages, but the #1 point of these is not all about ROI. They are low cost miners anyone can afford to buy and a great way to learn about crypto and how mining works. I specifically build these in order to get new people into the ecosystem, that would have never bothered because A) they cannot afford 2-5k USD mining ASICs, or B) can't even run one because of crazy power and noise requirements. Alot of people also gift these as a way to get people that have never even heard of crypto into crypto.

I say this all the time, but new people and veteran members alike get stuck into the ROI and higher price mania and forget that the only way your going to even ROI on a 2k machine, or expect your 54 dollar litecoins to turn into 200 dollar litecoins is by getting even more people interested, buying, and using crypto. A new user is not going to buy 100 Litecoins, or buy a L3+.

Whats better? The same old 10,000 people using litecoin and about 1,000 huge mining farms mining it all in an endless cycle, or 100k new people all mining with these USB miners and all getting interested and buy/using Litecoin?

Hope you get it now

Yeah, been trying to figure out how best to store all these different altcoins. I see the most value rising when you get in early on a new mineable coin, but there may not be an exchange yet. So, it becomes a bigger hassle to manage all of these. I wish there was wallet software that manages all altcoins on coinmarketcap for you.