The DC/DC chip on ethernet controller handles inputs from 5 to 12V. We tested cases of 5V and 12V and both work.

We also tested the temperature using thermal pads and not using. There are only negligible differences. This is why we marked them as optional. On the other hand, the current thermal pad solution may introduce bubbles which worsens the temperature in some local area. So we do no install them by default, but still ship them along in case there is any rare situation when the back of PCB is damaged and becomes conductive.

Generally yes. But the power loss on PSU would get higher.

Coupon rule:

For each device purchased, you get a 0.05 btc coupon. The price of each new purchased device can only be reduced by one coupon. Coupon works not only for round 2 sales, but also all future devices that are priced at more than 0.05 btc each.

Price adjusted to 7.9 btc per set.

Round 1 purchasers get a coupon of 0.05 btc per device. (0.5 btc per set, 0.0125 btc per hashing unit)

Round 2 purchasers bought at the price before price adjustment get refunds of the price difference, preferrably to the payment source address.

All coupons and refunds happen only between our direct purchasers and us.

How to run on pools other than ghash.io and btcguild with Raspberry PI and bfgminer

    1.Modify /etc/apt/sources.list on your Raspberry PI

    deb http://mirrors.ustc.edu.cn/raspbian/raspbian/ wheezy main non-free contrib
    deb-src http://mirrors.ustc.edu.cn/raspbian/raspbian/ wheezy main non-free contrib

    2.Update the aptitude package on your Raspberry PI

    sudo apt-get update

    3.Download bfgminer

    wget http://luke.dashjr.org/programs/bitcoin/files/bfgminer/4.7.0/bfgminer-4.7.0.zip

    4.Uncompress

    unzip bfgminer-4.7.0.zip

    5.Install dependencies

    sudo apt-get install autoconf libtool libncurses-dev yasm curl libcurl4-openssl-dev libjansson-dev pkg-config libudev-dev uthash-dev libusb-dev libevent-dev

    6.Enter bfgminer directory

    cd bfgminer-4.7.0

    7.Run configuration

    ./configure

    8.Compile bfgminer

    make

    9.Run bfgminer

    ./bfgminer  -o stratum+tcp://stratum.f2pool.com:3333 -u <workername> -p 123 --stratum-port <port(3333 by default)> --set-device PXY:diff=<difficulty(16 or above recommended)>

    10.Set static IP for Raspberry PI(modifying /etc/network/interfaces)
    Take the IP address 192.168.0.100 as an example. Replace iface eth0 inet dhcp as:

    iface eth0 inet static
    address 192.168.0.100
    netmask 255.255.255.0
    gateway 192.168.0.1    

    netmask and gateway are decided by your Raspberry PI's local network settings.

    11.Configure ethernet controllers

    Same example as above. Modify the pool address on ethernet controller to 192.168.0.100 with port 3333.

We observed some cases that the boards are bent, detached from the heatsink due to the not using of washers, or screwing too tight from the handle to the fan. This will cause unexpected behavior since the wires inside boards may break, or some parts will overheat because of bad attachment to heatsinks.

Please use the connector closest to the ethernet socket on the controller to connect to boards.

The order of board addresses is not important, the specific numbers are not important as well.
You only need to keep each boards' addresses different when connecting them to the same controller.

You can test each board or device separately with the same ethernet controller.

For example. If you have a device addressed at 0,1,2,3 and the other device addressed at 7,10,21,5 (just random numbers not overlapping with 0,1,2,3), they can be connected to the same controller. They can also mine separately with different controllers.

Do not forget to insert the ivory color washer (4 per device) between
the handle and the fan when screwing the fan onto the cooling kit.
It serves the protection of the PCB when screwing.

We apologize for this groupbuy's delivery time.

It's caused by a combination of three factors:

1. A one-day delay from the miscommunication from the sales department
to the logistics company.
2. The time of shipping from the logistics company to Hong Kong DHL.
3. The unexpected overfilling of DHL between 19th to 21st. This also
affected two other customers by 1-2 days.

To prevent it from happening again for this groupbuy as well as
overseas customers, we will fix the shipping process and choose more
direct shipping methods on demand.

After you connect to the ethernet controller, you can change all four sections of its IP afterwards.

The shipping process is:

1. We ship the parcel to our local logistics company. If we have more than a few hundred
to ship at one time, the company will come and pick them up.

2. The logistics company ship them to Hong Kong DHL (preferred), or Hong Kong UPS/Fedex
if DHL shipments are overfilled.

3. Hong Kong DHL ship them to the target location.

It is usually slower than shipping directly with DHL, but it reduces the risk of exportation
investigation. It also reduces the cost of shipping so that we could keep the free shipping
policy for longer time.

Try this:

If you already changed the controllers' IP. Please just append /FlashMega to the real URL
in your web browser.

1. The miner can not directly run with f2pool. If you want to mine on f2pool, you need a PC or a raspberry PI
with a mining proxy. The ethernet controller needs to be pointed to the proxy instead of the pool.

2. We now offer the shipping of fully assembled devices. If you need them to be shipped as a whole please specify
in your order. We still prefer separate shipping though, because it will reduce the potential shipping damage significantly.

3. The ethernet controller needs a 12V 1A DC input. You could either use a separate AC/DC for it, or wire one
directly from your PSU for the hashing boards.

4. Shipping to countries outside mainland China is free.

OP confirmed being belong to our our sales team.

It's of course better than just 1 cable with 1 PCI-e, because the current on each PCI-e connector is halved.

1 is enough. 2 is for safety in case you don't have good cables, 2 also brings less cable power loss.

1 pad for each unit.

You can also use thermal grease or any thermal pads with >2W/(M*K).

A full set:

4 hashing units
4 thermal pads (optional)
1 to 1/8 ethernet controller (multiple devices can share one controller)
1 cooling kit set
1 fan

There are no discounts when purchasing full sets. Instead we would like to motivate
the opposite: you can save money with sharing the ethernet controller,
preparing your own cooling solution and fans, reusing your old PSUs, etc.

There are many other X24-based mining devices already implemented. For example:

https://bitcointalk.org/index.php?topic=723445

They are using the same design and CAD drawing as our original X24 design.

Each controller can handle as many as 32 units.

Block Erupter Prisma (1.4TH/s with less W/G) will be shipped in October. Please see:

https://bitcointalk.org/index.php?topic=791827.0

for details.

Brief
ASICMiner Tube is based on the X24 open source design for BE200.

PCB File: https://github.com/blockerupter/AM_BE200_X24

CAD: https://github.com/blockerupter/AM_Tube

Spec
Hashrate: 200-215GH/s per hashing unit in normal mode, 800-850GH/s per full set.

Power consumption: ~0.9 J/GH board-wise. Gets higher along with
ambient temperature. On-wall power consumption relies on PSU efficiency.

Size: 25cmx12cmx12cm per full set.

Weight: 5.2kg per full set.

Powering: 1-2 6pin PCI-E plugs per hashing unit.

The hashing units are driven by ethernet controllers. Each ethernet controller
can run up to 32 units.

A full device consists of:

4 hashing units
4 thermal pads (optional, on demand)
1 to 1/8 ethernet controller (multiple devices can share one controller)
1 cooling kit
1 fan

After connecting the ethernet controller to hashing units, you can
type 192.168.0.254:8000/FlashMega on your web browser to update to the
newest firmware on each hashing unit (no internet connection is needed). After that
you can type 192.168.0.254:8000 to access the configuration page.

When assembling, do not forget to insert the ivory color washer (4 per device) between
the handle and the fan when screwing the fan onto the cooling kit.
It serves the protection of the PCB when screwing.

We observed some cases that the boards are bent, detached from the heatsink due to the not using
of washers, or screwing too tight from the handle to the fan. This will cause unexpected behavior
since the wires inside boards may break, or some parts will overheat because of bad attachment to heatsinks.

How to run on pools other than ghash.io and btcguild with Raspberry PI and bfgminer

    1.Modify /etc/apt/sources.list on your Raspberry PI

    deb http://mirrors.ustc.edu.cn/raspbian/raspbian/ wheezy main non-free contrib
    deb-src http://mirrors.ustc.edu.cn/raspbian/raspbian/ wheezy main non-free contrib

    2.Update the aptitude package on your Raspberry PI

    sudo apt-get update

    3.Download bfgminer

    wget http://luke.dashjr.org/programs/bitcoin/files/bfgminer/4.7.0/bfgminer-4.7.0.zip

    4.Uncompress

    unzip bfgminer-4.7.0.zip

    5.Install dependencies

    sudo apt-get install autoconf libtool libncurses-dev yasm curl libcurl4-openssl-dev libjansson-dev pkg-config libudev-dev uthash-dev libusb-dev libevent-dev

    6.Enter bfgminer directory

    cd bfgminer-4.7.0

    7.Run configuration

    ./configure

    8.Compile bfgminer

    make

    9.Run bfgminer

    ./bfgminer  -o stratum+tcp://stratum.f2pool.com:3333 -u <workername> -p 123 --stratum-port <port(3333 by default)> --set-device PXY:diff=<difficulty(16 or above recommended)>

    10.Set static IP for Raspberry PI(modifying /etc/network/interfaces)
    Take the IP address 192.168.0.100 as an example. Replace iface eth0 inet dhcp as:

    iface eth0 inet static
    address 192.168.0.100
    netmask 255.255.255.0
    gateway 192.168.0.1    

    netmask and gateway are decided by your Raspberry PI's local network settings.

    11.Configure ethernet controllers

    Same example as above. Modify the pool address on ethernet controller to 192.168.0.100 with port 3333.

Round 4 Sales
Full 10-devices set including:
  40 Hashing Units
  40 Thermal Pads (optional, on demand)
  3 Ethernet Controllers (1 for redundancy. One controller can in principle drive as many as 8 full devices)
  10 Cooling Kits
  10 Fans
  Free Assembling
7.9 BTC/set

Hashing Unit: 0.160 BTC/piece for <400 pieces
                   MOQ at 40 pieces. (Each unit hashes at 200-215GH/s in typical clock)

Thermal Pad: 0.007 BTC/piece. MOQ at 40 pieces.

Ethernet Controller: 0.069 BTC/piece. MOQ at 2 pieces.

Cooling Kit: 0.069 BTC/set. MOQ at 10 sets.

Fan: 0.014 BTC/piece. MOQ at 10 pieces.

For orders equal to or larger than 10 full sets (100 devices) or 400 pieces of hashing units, please contact
Phasebird or sale@bitquan.com. The price depends on order size.

Round 1 purchasers get a coupon of 0.05 btc per device. (0.5 btc per set, 0.0125 btc per hashing unit)

Coupon rule:

For each device purchased, you get a 0.05 btc coupon. The price of each new purchased device can only be reduced by one coupon. Coupon works not only for round 2 sales, but also all future devices that are priced at more than 0.05 btc each.

Round 2 refunds are completed.

Shipping Dates are from 22th September to 31th September.

An example of typical MOQ set:

40 hashing units
40 thermal pads (optional, on demand)
2-4 ethernet controllers
10 cooling kits
10 fans

It is highly recommended that you have one or several redundant ethernet controllers in case
that some of them are dysfunctional.

1. The miner can not directly run with f2pool. If you want to mine on f2pool, you need a PC or a raspberry PI
with a mining proxy. The ethernet controller needs to be pointed to the proxy instead of the pool.

2. We now offer the shipping of fully assembled devices. If you need them to be shipped as a whole please specify
in your order. We still prefer separate shipping though, because it will reduce the potential shipping damage significantly.

3. The ethernet controller needs a 12V 1A DC input. You could either use a separate AC/DC for it, or wire one
directly from your PSU for the hashing boards.

4. Shipping to countries outside mainland China is free.

General Policy
1. Payment before shipping. The shipping order follows the payment order.

2. No refunds after the generation of tracking numbers.

3. If the corresponding tracking number has not been generated, we provide full refund starting from 6th September.
(The nominal refund amount follows the actual payment method, for example, 1 BTC refund for 1 BTC payment, 4k
USD refund for 4k USD payment)

4. Free replacement requirements:
  -- If the user changes components on the boards, we do not offer replacements.
  -- We consider each hashing unit damaged only if it hashes at <180GH/s at 270MHz setting.
     If there are a few dysfunctional chips, but the hashrate is still >=180GH/s at 270MHz, we do not offer replacements.
  -- For other components, the requirement is that they don't function properly.

5. We offer 5% redundancy for the full set orders equal to or larger than 10 sets (100 devices), and hashing unit orders equal to or larger than 400 units. If the number of damaged units is equal to
or smaller than the redundancy number we do not offer replacements. If larger, you need to ship all damaged units back, and we
will offer the replacement units which has the number of (damaged - redundancy).

6. You pay the shipping when receiving. For orders without mainland China, the shipping fee is included in the price if hashing units
are included in your parcels.

7. All services from ASICMiner are only available to direct customers (including direct resellers). If you bought them from resellers
or any other secondary market, please contact your seller for services.

8. The official price is transparent and allows no room for any private bargains.

Purchasing Procedure
1. Contact customer service via forum, email, IM or phone.
2. Fill the order details in the form provided by the customer service. (name/address/zip code/phone/email)
3. Pay according to the Bitcoin address given by the customer service.
4. Check for the tracking number when we start shipping.
5. Ask for refunds starting from 6th September if the tracking number has not been generated at that time.

Please make sure you own the private key of your Bitcoin wallet used for payment. It will make refunding much easier.

Contacts
Bitcointalk ID: phasebird
Email: sale@bitquan.com
Customer service: help@bitquan.com
Website: www.iasicminer.com
Customer service QQ IM ID: 1327503207 (overseas)
                                      120045458 & 1327573930 (mainland China)

Please contact only the the methods above. We have not got facebook, linkedin, skype, or any IM groups yet. Beware!