35 BFL FPGA Singles (2 are broken and being sent back to BFL for replacements so there will be 37 hopefully within a week)


Full size: http://i.imgur.com/jKUnQfe.jpg

All were purchased used through these forums... your unit should be above (other than the broken ones) if you sold me one. :p
Not pictured: 2 box fans, 4 large PC-style fans, a shelf full of more power strips and BFL power bricks, and the console (keyboard/mouse/monitor) for the host computer.
This is in a somewhat cramped basement so it was hard to get a picture with everything in it.

Unfortunately I can't take credit for the custom BFL enclosure at the right of the top shelf; this came with my most recent BFL single purchase. (thanks!!)

Host computer is an Intel Atom machine (the box with the bright blue light) but I'm currently having a lot of USB problems (which could actually be due to the units themselves... maybe it's because they're all used, but BFL Singles can be such a pain sometimes) so I'm looking to replace it with a regular computer soon. 

I know that I could power the BFLs from ATX power supplies using custom cables, but it would cost about $1000 US in cables and power supplies, and the Single SC's will require even more power (thicker cables + more power supplies) so I'm holding off until BFL's ASICs are out before I consider alternative power supplies.

I'm considering removing the cases from the units on the bottom shelf and will probably do this if a new host computer doesn't resolve my USB issues.  It almost seems like BFL sacrificed some of the functionality of these things to make them look nice, which I think is a terrible decision considering the purpose of bitcoin mining gear.

Next step: Set up an air conditioner for when summer comes around...

No, unfortunately the coupons are only valid for one type of product.  I'm selling coupons for both the S1 and S2 but do not have any coupons for the U2 USB miners.

Edit: I see that someone else tried doing this about a week ago with many negative responses.  If you do not trust me or think this is a good idea then please kindly ignore this post.

I have a large amount of AntMiner S1 and S2 coupons on my BITMAIN account and don't plan on using them all myself so I'm wondering if anyone is interested in buying them.  They are not transferable so I must create your order on my account. (I realize there are trust issues here)

I have 0.05 BTC discount coupons for the AntMiner S1 and will sell these for 0.02 BTC each, so you basically get a free 0.03 BTC discount.

I also have $400 discount coupons for the AntMiner S2 and will sell these for $200 worth of BTC each (no PayPal, sorry), so you basically get a free $200 discount.

Two options for payment depending on how well you trust me.
1. You pay me for the coupon and send me your address, I create the BITMAIN order with your address and forward you the BITMAIN invoice with payment address.  You pay the amount of the miner directly to BITMAIN.  Risk is that you don't pay within 1 hour of the order being created and the order is canceled.  In this case I refund you if I can get the coupon back from BITMAIN.

2. You pay me for the total price of the product after coupon price + my fee for the coupon and tell me your shipping address.  I place the order with your money.  Risk is that I'm a scammer and take your money without placing the order.  I know I'm not a scammer but you might not know that, so the issue is trust.

Not willing to accept escrow since I need your money to pay for the order.  I haven't been super active recently but have resold USD dualminers here with a good rep a while back and also have a 100% feedback rating + top rated status on eBay: http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback2&userid=mittynuke&ftab=AllFeedback

Please email me, matt@doonstack.com, if you are interested.  Include the product(s) you want (S1 and/or S2), quantities, your shipping address (name + address + phone number), and whether you prefer to pay me the full amount (preferred option unless you plan on staying online until I send you the BITMAIN order) or just the amount to buy the coupon. (you must pay the BITMAIN order within 1 hour of me sending it to you if you opt for the latter)

Thank you!

Thanks!
Price has been dropped to $189.99+shipping

*note to mods: I also have this topic posted in the Group Buys forum- not sure if posting it in 2 forums is against the rules, sorry in advance if it is!

Hey everyone,

I'm selling Gridseed 5-chip miners.  I don't have controllers to sell at this point due to a shipping mix-up so I'm only selling the bare units.

$189.99/miner + shipping, shipping to US, Canada (discounted Int'l rate), and worldwide.
Shipping via USPS services (Priority Mail, Priority Mail Express, or First Class International Package Service (not recommended))
Ships from Rhode Island, US within 1 business day of cleared payment
I can also ship via UPS or FedEx by request.

Payment methods accepted: PayPal, Bitcoin (manual processing via Coinbase)
(Sorry for no automatic Bitcoin processing- I'm working on a better solution!)

Comes with Mini-USB cable, power supply not included
This power supply should work for running single units: http://www.amazon.com/Adapter-Power-Supply-LCD-Monitor/dp/B003TUMDWG/

Instructions are available here: https://bitcointalk.org/index.php?topic=482352.0

Please email, don't PM me with any other questions: matt@doonstack.com

Place your order here: http://mittysminers.com/products/gridseed-5-chip-bitcoin-litecoin-miner-300-kh-s-scrypt-10-gh-s-sha256

Thanks!

Pics:

Hey everyone,

I'm selling Gridseed 5-chip miners.  I don't have controllers to sell at this point due to a shipping mix-up so I'm only selling the bare units.

$189.99/miner + shipping, shipping to US, Canada (discounted Int'l rate), and worldwide.
Shipping via USPS services (Priority Mail, Priority Mail Express, or First Class International Package Service (not recommended))
Ships from Rhode Island, US within 1 business day of cleared payment
I can also ship via UPS or FedEx by request.

Payment methods accepted: PayPal, Bitcoin (manual processing via Coinbase)
(Sorry for no automatic Bitcoin processing- I'm working on a better solution!)

Comes with Mini-USB cable, power supply not included
This power supply should work for running single units: http://www.amazon.com/Adapter-Power-Supply-LCD-Monitor/dp/B003TUMDWG/

Instructions are available here: https://bitcointalk.org/index.php?topic=482352.0

Please email, don't PM me with any other questions: matt@doonstack.com

Place your order here: http://mittysminers.com/products/gridseed-5-chip-bitcoin-litecoin-miner-300-kh-s-scrypt-10-gh-s-sha256

Thanks!

Pics:

Hey everyone,

I currently have 8 new AntMiner S1s for sale.
These are the popular 180 GH/s out of box, 200-205 GH/s overclocked miners.

$990 via PayPal includes US priority (2-3 day) shipping.
+$60 for US Express (usually 1 day, max 2) shipping

+$50 for USPS Priority Mail to Canada
+$75 for USPS Priority Mail Express to Canada

+$65 for USPS Priority Mail International (worldwide)
+$85 for USPS Priority Mail Express International (worldwide)

I can also ship via UPS or FedEx; the price for these services depends on your location. Please email me for a quote.

Brand new in box, does not include power supply or any other accessories like Ethernet cable or Wi-Fi antenna.

Please email matt@doonstack.com (preferred) or PM

Thanks!

I bought a 2nd gen Avalon (not the official Avalon 2) from Bit-Tech in the group buy forum and one of the four boards on one of the hash module has a burned component and the overall unit hashrate is about 50 GH/s lower than rated.  Bit-Tech refuses to send me replacement components and will not respond to my messages so I'm wondering if anyone else is selling Avalon components and has one of these in stock.

I'm just looking for one of the hashing module boards- essentially 1/4 of a 55nm Avalon gen 2 hash module minus the heatsink or any other parts.

Please PM if you have one.. thanks!

Right now I'm making arrangements to order a batch of the 5-chip miners as there seems to be a larger demand for those and I felt like I had to do something while waiting on DualMiner, but unfortunately I simply don't have the capital to also buy a batch of DualMiner USBs.  It's also an issue of my time between selling stuff here, on eBay, and working a full time job.
But next time I'm going to have a website set up to handle orders which should hopefully result in faster order processing and maybe better (i.e., calculated based on actual cost) shipping rates for everyone.

I'm running multiple overclocked AntMiner S1s and I put two per 1000-watt 80PLUS Platinum PSU, clocking in at around 760-780 watts at the wall at 120 volts.  So somewhere around 380 watts per unit overclocked.

Yeah, they are very slow with international shipments except for Priority Mail Express International which is decently quick.

DualMiner will have limited stock available next week and higher volumes available in March. I'll try to get my hands on some next week; otherwise it may not be until March :/

I'm currently having some issues getting in touch with DualMiner and their website also seems to show limited/out of stock for the DualMiner USBs. :/
Unfortunately it looks like things are going to be a bit delayed- as for now I don't have an ETA but will post here as soon as I hear back.

I apologize for the delays and hope everyone who ordered in the first batch who has received their miners are enjoying them!  I know there are still international orders that have not been delivered but it looks like the first few orders to Europe have been delivered today so everyone should be receiving their miners soon.

Coinbase and Bitpay (possibly others?) are services which enable merchants to accept Bitcoin for transactions with a fixed fiat currency value. (e.g., a $20 USD item)
These services calculate the amount of BTC the customer needs to pay at checkout then immediately convert it to USD or another fiat currency for the merchant to receive:

The merchant sets up an account on either service and enables the service as a payment gateway on their online store.  Customer adds product to their cart and sees their total in Dollars or whatever currency just like normal.  Customer then clicks "check out" and is redirected to a Bitpay or Coinbase "pay now" page which computes how much Bitcoin the customer needs to pay using the current exchange value.  Customer pays the amount, the BTC is immediately converted back to fiat and the merchant receives the Dollars via direct deposit into their bank just like accepting credit card or PayPal, Dwolla, etc.  The merchant could also decide to keep the money in BTC but the choice is up to them.

So the exchange rate problem has been solved on the merchant side at least.

Ha alright, I'll order another batch.  Waiting to hear back from DM but hopefully I'll have them in 1-2 weeks. (just a rough estimate; I actually hope it's sooner)

I don't have any info on new firmware but will post anything if I hear it.

And I am considering ordering another batch because there seems to be a pretty big demand for these.
But nothing official yet.

I experienced a similar issue when I tested a few of the units and had just assumed it was something wrong with my computer;
I first tried running a few units on my Windows 7 x64 desktop PC with no success- drivers seemed to install but the units would simply not mine.  So I then tried on my Windows 8 x64 laptop and they worked fine and assumed the issue must be with my desktop PC.

However according to the DualMiner site you don't need to install the VCP driver unless you're on Windows XP- Windows 7 and 8 should install the devices automatically.

Can you post some screenshots of the errors you're getting?

Awesome, glad it's working!
DualMiner just got back to me and said it doesn't sound like a hardware problem, haha.

I'm sorry you're experiencing issues with your miner. :/
I just emailed my contact at DualMiner and will get back to you when I hear back from him regarding warranty claims.  Hopefully I hear word back by tomorrow.

No problem, glad it got there quickly & safely.
Did you make sure you set the tiny switch on the unit itself to "L" mode for Litecoin only?
Let me know if you still can't get it working and I'll contact DualMiner for RMA info right away.

I have a few of these and the quality control seems nonexistent.  A couple of them run at the advertised speed but others are very unstable and/or are mining below advertised performance (130-180 GH/s).  Two of them arrived with no power cables for the hash modules and FPGA controller and some of them are also missing case screws and the case screw hole threads are stripped on other units.  I will post a more detailed review outlining the performance and issues with each unit I received when I get the missing parts but in the meantime I strongly caution buyer beware for this vendor.