April 8, 2017

BITMAIN AntRouter R1: 1st WiFi Device with a BTC Mining Chip

The AntRouter R1 is a wireless networking device containing a bitcoin mining chip. The R1 is preconfigured to mine on AntPool’s solo mode, meaning that as long as the device is powered, you are competing for a chance to solve a block and win the entire block reward of 12,5 bitcoins.

Main features of the AntRouter R1:
  • General Wireless Router
  • Mini WiFi Access Point
  • High Speed USB Charger
  • Bitcoin Mining Host 
  • Bitcoin Mining Hashrate: 5,5 GH/s
See it in action - mining with a AntRouter R1 device:

This is a good mining device for home use. The hashrate is not quite high but it can be used for home-based bitcoin mining without any problems. 5.5 GH/s can be also pointed to any other SHA-256 cryptocurrency.

March 28, 2017

Avalon A7 Bitcoin Miner Specs

AvalonMiner 721: The ROQ Solid Miner. The AvalonMiner 721 is made with Reliable Open Quality. Bitcoin mining with this hardware features:

  • 6THash @ 900W @ $888
  • 0.15J/GHash or 150W/THash/s
  • $0.15/GHash/s or  .21BTC/THash/s

AvalonMiner 721 packs 72 A3212 chips into each unit providing a consistent 6 Terahash per second (THS) at 900 Watts, all designed for long lasting operation.

From upgradable Open Source firmware to using Off-the-Shelf Simple power supplies, controllers, and AvalonMiner Management Software (AMS), Canaan’s goal is to help you manage datacenters, not machines. 

The AvalonMiner 721 is a datacenter miner. With aluminum printed circuit boards (PCBs), aluminum case, Smart Cooling, and Smart Frequency Adjustment, the AvalonMiner 721 is the Smart Miner.

AvalonMiner 721 by Canaan Creative Co., Ltd.
  • Hash rate: 6Th/s -5% - +10%
  • Power consumption: 900 W -5% - +15%
  • Operating temperature: -5C to 40C
  • Dimensions: 340mm x 136mm x 150mm
  • Cooling fans: 12038 PWM fan X1
  • Net weight: 4.3 Kg

After running mine for a day, it stabilised at 6.3Th for 1040W at the wall, though I'm using gold PSUs so expect a bit less power usage with platinum. The more interesting thing is when I undervolted it to 4700mV, it seemed quite stable at 770W for about 10% less hashrate. Lower levels of voltage seemed to kill the hashrate or were unstable.

January 17, 2017

Antminer S9 - Bitmain - 14 Th/s

Antminer S9 is built on the BM1387 ASIC Chip. It is the world’s most efficient bitcoin mining chip in 2016/17. FinFET technology delivers 0.098 J/GHs. Each Antminer S9 has 189 chips inside.

Antminer S9 technical data sheet:

  • Bitcoin Mining Hashrate: 11TH/s (Batch 22) & 14TH/s (Batch 23)
  • Power Usage: 1078W +10% (Batch 22) & 1372W +10% (Batch 23)
  • Efficiency: 0.098 J/GH +10%
  • Device Dimensions: 350mm(L) x 135mm(W) x 158mm(H)
  • Temperature when mining up to 40°C
Antminer S9 has also a very friendly user interface which allows you to start mining bitcoin on the way - no advanced setup is needed in order to run the device.

The Antminer S9 has a hashrate of 14 Th/s and a nominal power consumption of 1375 watts