Halong Mining DragonMint T1 Bitcoin Miner Released

DragonMint T1 Bitcoin Miner

A surprising entry into the Bitcoin ASIC miner market.  Word on the street it uses a 10nm hashing chip from Samsung, compared to the Bitmain chip from the TSMC semi-conductor foundry.   At this point in the hardware development curve for ASIC miners supporting SHA-256, Bitmain has come to dominate the market with their S9-series of miners.  When this was announced, many people doubted its authenticity.   I can tell you that at the time of this writing, these are hitting the streets and is confirmed and a real and performing miner in-line with pre-release specifications.   This Bitcoin miner's performance numbers come in at an impressive 16Th/s while only using 1,480 watts of power.   This actually give you more efficiency than the 14Th/s S9 miner.

When you look at the design, it is almost identical to the Antminer S9.   Basically the same size and weight and  setup.   Dragonmint's have three hashing boards and two cooling fans.  The web interface in also Linux based via an onboard controller.   Setup is the the same with these units, mining page for pool credentials and another page for viewing performance.  These units consume about 7.10amps at 208 volts so you can operate two miners for each 20-amp circuit.

In closing, these units definitely fit the bill for the newest generation of capable Bitcoin miners and it will be interesting to see with their sales numbers if we see better models hit the market down the road.   

 

Specifications
Manufacturer    Halong Mining
Model    DragonMint T1 or 16T
Release Date April 2018
Size    4.92 x 6.10 x 13.38 inches
Weight    13.22LB
Chip boards    3
Chip name     DM8575
Noise level   75db
Power    1480 watts
Wires    9 * 6pin PCIE
Voltage    12 volt
Interface    Ethernet
Temperature    60 - 95 °F
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Canaan AvalonMiner 821 Bitcoin Miner

AvalonMiner 821 Bitcoin Miner

This is the newest ASIC miner from AvalonMiner, the Avalon 821.  This is the successor to the Avalon 741.  The Avalon 741 clocked in at 7.3Th/s while consuming 1,150 watts.   The A8 now produces a whooping 11.5Th/s for only 1,200 watts.   This is over a 60% increase in hashing power with only a ~100 watt increase in power consumption.  This is good news for AvalonMiner owners that are looking for an upgrade that isn't from Bitmain.   The Avalon design philosophy is a little different that the Antminer units.   The 821 has a single fan design that uses an exhaust-only fan.  

One drawback to this design is the placement of the temperature sensor on the unit.  It is critical that you have a climate-controlled environment that keeps the unit below the temp threshold.  The S9 miners are more resilient in high temperature environments.  Once temps are under control, the 821 is a very reliable unit and a quality choice when purchasing a Bitcoin miner.   The unit comes with two hashing boards with four PCI-E (6 -pin) connectors per board.   Now in a very different design than other miners on the market, the Avalon 821 does not have an on-board controller.  Instead, they use a Raspberry Pi as a controller and proprietary cables to communicate with the miner.  On the plus side, the controller can support up to 15 miners per Pi.  To accomplish this, you daisy chain the miners together.

The Pi provides a basic Linux-based web interface.  Nothing flashing but sufficient for what the modern miner needs from a miner administration standpoint.  

 

Specifications
Manufacturer    Canaan
Model    AvalonMiner 821 or A8
Release Date    February 2018
Size    5.90 x 5.35 x 14.56 inches
Weight    10.36LB
Chip name    A3210
Chip size    16nm
Chip count    104
Noise level    65db
Fan(s)    1
Power    1,200 watts
Wires    8 * 6pin PCIE
Voltage    12.0 - 12.6 volts
Interface    AUC3 - RJ45
Temperature    60 - 90 °F
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