Well that's because nobody builds for small guys anymore. Anything short of industrial (by which I mean power consumption and noise, certainly not build quality in most cases) got swept by the wayside a couple years ago.

It's probably best to research things before buying them. USB miners have always sucked, your T1 was made three years ago, stuff like that.

Yeah, that's not cheap, not for old slow inefficient gear.

Also if it's what I'm thinking, the stratum implementation in the controller is broken. There are a couple proxy workarounds that fix about half the problem. Do a bit of digging around ASICMiner Tube issues.

The big problems with BlackArrow were overshooting their efficiency target by about 100% and delivering a year behind schedule, if at all.

Avalon and ASICMiner are really pioneers in the industry. ASICMiner had the first chip, Avalon had the first miner available to consumers. Black Arrow was just a blip on the radar in Butterfly Labs' neighborhood of potentially evil abject failures.

Bitmain's first real product was a 2J/GH miner, readily available and self-contained, when most everyone else was dealing with 6-10J/GH miners and/or preorder hell. People bought the gear and it was promptly delivered and worked out of the box with better efficiency than just almost everything else, which gave them a huge boost. The fact they don't do pre-orders, they don't take in any money for products that don't already exist (or, worst case, are already designed, tested and slated for manufacture in the very near future) put them ahead of a lot of other outfits with long waiting lists or unreliable gear.

And then when they price-warred Spondoolies out of business with cheaply-built gear it became easier to own the industrial market.

And, as mentioned, they've been able to hang onto their lead because they have the most efficient readily-available chip (I'm sure Bitfury can beat them with an underclock) so people who only care about that, rather than reliability or customer service or much else (so, short-sighted profiteers, or in a word, humans) keep feeding them money in exchange for stuff.

That's an excellent point. If nothing else, get a trusted courier to deliver a cashier's check. Buying bitcoins is great and all but with exchange fees and volatility you could end up losing out on more than $6000.

Actually, if you're 480V line-line, your line-neutral is 277V.

My shop was wired for 208V line-line three-phase wye, so 120V line-neutral.

I'm pulling 350A per leg into my hosting room and run 100KW of miners without any trouble - except cooling. Lot of heat, especially in July when the air's already 95 degrees.

All I'm saying is, I've used an undervolted S4 as a space heater in my living room the last two winters. Nothing crazy loud about it. Not "you won't notice it" loud, but not "crank up the volume to drown it out" loud.

When I field-tested my undervolted S7LN, it was no louder right next to my seat than the case fans in the computer across the room.

I use an S3 as a heater right under my desk at work, full stock, and I forget it's even there most of the time because it's almost dead silent.

The new revision Terminus pod PCBs arrived yesterday. Hopefully I have some time soon to get one built, but I'll have to take a day or two to write some micro firmware before it's really workable. Once that's golden I'll be able to make and sell them as well.

I contracted out the main regulator for BF16 pods since that's the part of the Terminus that gave me the most trouble. So at least that won't cause delays.

You're frustrated? Try being the guy that works 70-hour weeks in a 95-degree shop (for what amounts to well under minimum wage) designing and building stuff for people who whine on the internet. Last week I got a full-time helper for manufacturing for the first time ever and I've been building miners for two years now. Only got a helper because my mom lost her job so we're helping each other out.

You want something, go make it. Can't make it? Don't complain. I got more skin in the small-miners game than anyone else in the world has had since 2014 and I'm working as hard as I can to fill that gap. I'll get it when I get it.

Ah okay, I missed that part. If it works as stated that'd be simpler for most people.

Yeah but, if you specify the device you want you can tune each one to an optimal frequency instead of forcing them all to run on the same speed.

One far away from you, one reason why I've ignored offers to help.

I had a part-timer working between classes February through April, the other guy helping out some in May and June but not a lot. I've been basically manufacturing solo for the last two or three years.

By the way, I forgot to mention but these pods work with VH's cgminer. You'll want --gekko-terminus-freq to set the speed. It runs 0.44GH/MHz so 250MHz gets 110GH.

For 100KW of gear you're gonna want provision for a lot of airflow. I have all my hosted miners ducted into around 18kcfm of fans and another 8kcfm or so for ambient heat leakage and it still gets pretty hot in here.

The L3+ that burned up I had running of DPS1200 server PSUs on my breakout boards. I think there's a bug in the L3+ that causes one board to suddenly pull an extra couple hundred watts, because the board damage seemed to be centered around one pair of cables. The boards were running cool and comfortable for several days before suddenly burning up. I've got many S9 and T9 miners on these boards on 1500W PSUs with zero issue so I know it's not an overall power draw problem.
The miners have since been moved to pairs of I think SeaSonic 850W PSUs. In the last month or two I've had three of them trip out a PSU and require a power cycle but nothing's burned up.

Fire is definitely a risk. I took in five L3+ for hosting and within a week three of the PSU breakout boards (which are easily good for 1500W and I've literally never had an issue with them in two years) caught on fire. So be careful what PSUs you use.

Be prepared to spend a buttload of money, especially if you're not doing the work yourself. I revamped my hosting with 400A 3-phase service about a year and a half ago, had zero labor costs (did all the install myself) but just the material was around $5k. I guess that's not a lot to someone buying a hundred ridiculously overpriced miners, but still. Labor on top of that could easily be double the material cost depending what has to be done.

You'll also have to check with the utility provider whether or not the lines in your area can even support the addition of that much constant load.

I currently have one full-time minion, which is the most minion I've ever had. Just started last week. I have another guy who occasionally helps when he has time but he's also a general handyman for a lot of folks around town so he stays pretty busy.

Every 2Pac is run at 100MHz stock voltage for 30 minutes. Every one that passes (no dropouts or HW) are writted with a serial number and run an additional 30 minutes. Every one that passes gets shipped. Hence why I guarantee stock specs and overclocking is "at your own risk".

They'll probably just appear. It's statistically likely that your order will ship between last Friday (7 July) and two Fridays from now (21 July) depending on your order in the queue. I've shipped out over 360 Batch 3 sticks in the last two weeks and by the end of this week that should be closer to 700. Pretty much everything after that point is bulk orders.

Actually you PMed me a question barely peripherally related to this whose answer could be found with about five seconds' use of the search function and I tend not to answer questions like that. I don't like doing other people's homework.

I don't want to sound rude, but I'm probably gonna sound rude. It looks like you need to spend some time reading up on enough basics to be able to formulate that question in a way that's possible to answer, by which time you might have answered it yourself already.