Avalon 841 Miner is an Application Specific Integrated Circuit (ASIC) hardware produced by Canaan Creative. Started in 2013, Canaan is one of the top developers and manufacturers of Blockchain servers and ASIC microprocessor chips. They also specialize in the production of custom-designed ASIC microprocessors for their Avalon mining brand. 

About Avalon Miner 841

Avalon Miner 841 is a Bitcoin miner that uses 16nm ASIC chip technology. Released in April 2018, it is a second 8th generation AvalonMiner model. The Avalon Miner 841 weighs about 4.7 kg, and its outer dimensions are 370mm x 150mm x 136mm. This Miner 841 lacks an in-built controller and requires a separate controller. It has a reliable and stable design, and a compact shell case helps conserve space. 

Specifications 

Due to the 16nm chip technology, the miner has a high power efficiency of 0.99J per Gh/s. The Avalon 841 comes with a top hash rate of 13.6Th/s and power consumption of 1290W. The Avalon miner 841 has a high price, but this is compensated by the reduced downtime, less need for repairs, and low repair costs. This reduces the total miners' cost during its lifetime.

104 A3210HP 16nm ASIC chips power the Avalon Miner 841. Designed and built to last, the 841 comes with a two-year limited warranty. The rated power voltage is about 12 - 12.6V, has four hash boards, and the hash board frequency is automatically controlled. The miner comes with one Avalon Miner Controller (RPi 3 based), a MicroSD card with pre-installed Wrt-based controller firmware, and 4 AUC3 12C USB converters. The user can use the Raspberry Pi single-board computer as the controller unit. 

Fan and Cooling

The Avalon 841 comes with one fan for cooling. There isn't any need for additional cooling methods as the fan operates at a maximum of 6000 rotations per minute. The miner also has a unique air forming heatsink that prevents the risk of overheating and ensures a stable working condition.

Miner Set-Up 

Avalon Miner 841 Controller's OpenWrt based firmware supports these types of Raspberry Pi single-board computer:
Avalon Miner Controller
Pi 1 Model B
Raspberry Pi 2 Model B
Pi 3 Model
Set up requires an SD card. Other components needed are: 
One server-grade 12 VDC power supply unit with 8x PCI-E 6-pin connectors.
It would be best to have a connector with a dedicated cable and at least an 18 AWG wire gauge.
C13 power cord.
A 5 VDC 2.4 A USB wall wart for the controller unit.
Get a USB Type-A -> Mainly for Micro USB cable between the controller unit and the 5 VDC 2.4 A USB wall wart.
Use the Ethernet cable to go from the controller unit to your router/switch device.

Computer to set initial pool and configuration settings.

 Algorithm

The Avalon Miner 841 works with the Secure Hash Algorithm (SHA-256) algorithm. SHA-256 is a cryptographic hash function that allows ASICs to mine up to 40 coins. The top coins are Bitcoin (BTC) and Bitcoin Cash(BCH).

Power Consumption

The power consumption of the Avalon miner 841 is 1290W. This power consumption is lower than the later models because of the ASIC chip's processing speed and efficiency. The ASIC chip ensures the miner is productive while consuming less power than usual.

Noise Level

The Avalon miner 841 has a noise level of 65db. Most miners have a noise level of 70 to 80db. To better understand this, Avalon miner 841's noise level is equivalent to an average adult conversation. 

Profitability

Miners are gotten because of profitability and return of investments. Profitability is an essential criterion for choosing ASIC hardware. Manufacturers like Avalon try to increase profitability by choosing a good algorithm, reducing energy/power consumption, and rising hash rates. To accurately calculate the profitability of the Avalon Miner 841, one has to look for the most profitable coin and factor in electricity costs.

Avalon Miner 841's profitability depends on current electricity rates and market conditions. To increase profitability, the user can connect two or more Avalon Miners, which will bring up the hash rate.