AvalonMiner 741 Review

Cryptocurrencies aren’t new. They came through with the success of the Bitcoin, and have been trending ever since. While it started with the simple process of investing and then waiting for your investments to bear fruit, these days you get to play with a lot more options. So many different avenues have come up and established themselves firmly in the cryptocurrency market that it seems half the population of the world is now juggling with them, and earning some pretty substantial profits in the process. The niche that has been created is no less profitable than any other leading business venture and is one of the fastest ways of making money today.

However, if you think it is all about the investments, you can’t be more wrong. Gone are the days when investing in cryptocurrencies was the only way to dabble in your favorite Altcoins, these days, you have got another fantastic option. We are, of course, talking of cryptocurrency mining, an emerging new form of the cryptocurrency trade which enables you to mine for Bitcoins yourself, all the while being solely responsible for the profits you make and the expenditures you end up making.

Here, in this article, we present you with the AvalonMiner 741, which is one of the most popular and recently launched miners to have hit the market. We analyze this piece of hardware in depth, with taking a good look at its specifications and unique features along with the pros and cons it comes with.

The AvalonMiner 741 Review

Canaan is one of the many manufacturers of Bitcoin and cryptocurrency miners in the market. The company has shown rapid growth over the years and has managed to make substantial profits while dishing out some fantastic machines. Their customers remain largely satisfied and as a company of some good repute, you can be sure that your money is going into the right hands if you choose to invest in any of their products. The latest model from Canaan, the Avalon 741, is being touted as a major improvement over their earlier and equally successful model Avalon 721. While Avalon 721 featured a decent hash rate, the 741 has gone a step ahead and bettered that value.

First Look & Shipping

One of the many things which distinguish a miner from others is the way in which it arrives to the customer. Of course, that is in fact largely dependent on the place from which you actually choose to buy the product, but a lot of it depends on the actual machine as well. As for the Avalon 741, it arrives in decent packaging and inside a custom box to further shield it from any transit mishaps or damages. All of this ensures that even if the ride during transit gets rough and bumpy, the actual unit remains secure inside and the hardware is not afflicted with any scratches or loose parts.

As for the accessories it gets shipped with, you will receive the link cable essential for establishing a connection between the miner and your system, along with a USB dongle with the unit. There is, however, a slight inconvenience as Canaan doesn’t ship the controller along with the Avalon 741. The controller, in fact, is sold separately.

Now, out of the many things that are used as performance evaluations of a cryptocurrency miner, one of the most important is whether or not the miner has an effective cooling system. The fact is that these miners often need to do a lot of heavy lifting. They are responsible for digging through the blockchain and verifying transactions, and in the process even fish out crypto coins for you. Naturally, all these processes take their toll on the machine and they tend to get hot, which is why specialized cooling systems are installed on these devices to keep them cool during operation. These systems consist of a basic fan, one or two in number and some structural modifications to keep the heat out.

As for the Avalon 741, it comes with a cowl attached to the fan of the unit, which has the purpose of channeling and better directing the air from the back of the unit. This is actually a welcome change from the usual standard fans that are installed on other mining rigs. Such standard fans were simply bolted on either side of the miner, but the system implemented in the Avalon 741 could prove to be much more effective in cooling the unit down and at a faster rate. Additionally, to further get rid of the excess heat, you have a dedicated heat sink which seeks to dispose of all the heat by collecting it in one place. You will find this heat sink to be contoured in nature and installed at the front grille on top of the PCB boards.

Setup and Usage

As with any new device, the one factor that happens to make buyers the most apprehensive is the general setting up and the ease of usage. If a device tends to be too complicated to operate, chances are it won’t be making it big in the market, whereas devices with relatively simpler operations and high ease of use will generally find it easier to earn a name for themselves. As for the Avalon 741, fortunately, the setup is as simple as it gets. In order to start operating the miner and mining for Bitcoins, all you need to do is download the firmware of the device and burn the image to the correct micro SD or SD card. Once you have done that, all that is left is to simply plug in the controller to the USB dongle we mentioned earlier, and connect the cables to your Avalon 741 rig.

Switch on the power button the controller as well as the rig. You then have the flexibility to make use of any IP search tool you desire in order to locate the IP address. We recommend using AngryIP but you are free to use whatever service suits you best. After that, it is all smooth sailing since you then have the very familiar and friendly Canaan software to guide you through the rest of the way.

As for the interface of the miner, it happens to be quite uncluttered and fairly simple to recognize and understand. Avalon users will instantly recognize it and even if they don’t, this graphical interface will quickly grow on you. To enter your pool info, that is in case you are a part of a mining pool and prefer to keep your mining activities in a group atmosphere, you need to first enter the configuration tab which you will find quite easily. After the details have been entered, simply click on the save button, and you will find that your rig has come to life and started mining.    

For finer details and advanced features, navigate to the advanced tab. Here you will get to configure the open WRT panels. If you don’t know what these are and have no idea what to do with them, it is best to simply leave this option as it is and not mess with it in the slightest manner. So in conclusion, Canaan has provided you with a pretty well designed, robust and uncomplicated user interface to go with that can be understood by everyone, and at the same time, is nuanced enough to not be called feature-lacking.

Airform Cooling Technology

The Avalon 741 inherently is simply an upgrade on the Avalon 721. Naturally, it wasn’t expected to sway too much from the original features adopted by the Avalon 721. However, the 741 seems to be on a different path altogether. It has managed to create a unique space for itself in the market and is rapidly climbing the popularity charts. While the Avalon 721 used a set of 72 chips, the Avalon 741 comes with a powerful and punch-packed set of 88 chips. However, the vast increase in the amount of chips used could also have a hidden disadvantage. The fact is that more chips need proportionally more cooling. Hence, the 741 was thought to require more robust and powerful cooling mechanisms which would consume a high amount of power. But the unit pretty efficiently managed to find a way around that too. The cooling mechanism implemented in the new model is of the new Airform technology. As per this implementation, the flowing design of the unit makes sure that the air is funneled throughout the unit. The channeled air actually takes on a much bigger size when it comes to areas prone to heating faster than others. This makes for a much smoother and better heat dispelling system. As for the PCB, both sides of it have heat sinks mounted, and also the enclosure funnels the air effectively over them.

As per the new cooling design, the heat sinks have been designed to be tapered in nature. They start out narrow at the inlet and go on widening as we move towards the chips mounted on the board. Furthermore, in order to widen the surface area so that the heat gets more area to be dispelled from, the fins have been designed with grooves on them.

The front has also been modified to be much more open, which effectively allows for higher air volumes to enter the system and travel at high speeds before coming out of the back side of the unit. As per the actual fan of the 741, it is somewhat louder than that of the 721, although not by much. At 56 dB from a distance of 4 ft, it is still soft enough to operate in your house, although we would not exactly recommend a living room arrangement.


Now to talk of the stability of the unit, this is again a pretty desirable upgrade from the 721. All cryptocurrency miners are preferred to be stable. Since they tend to carry out a lot of heavy operations, it must be ensured that their systems remain stable and perform smoothly without any hiccups. We ran a few tests on the 741 and found out that the unit averages out between the hash rates of 7.7 to 7.8 TH/s. We ran these tests with the BTC.com and Kano mining pools. The outcome we received was not much surprising considering the solid reputation of AvalonMiners in the market. The 741, as is with most of the other models before it, is pretty rock solid when it comes to stability. If you are a serious miner and tend to operate not one but many miners at a time, you are effectively running a miner farm.

Now for such miners, the Avalon 741 will prove to be a delightful machine since it actually offers the capability to chain together five or even more than that Avalon 741s on a single controller. While casual miners may not recognize it, but this actually happens to be a pretty remarkable feature that will make managing miner farms really convenient and easy for the average hardcore miner. Now please note that while it is not possible to chain together miners from different models, for example, the Avalon 721 with the Avalon 741, but the chaining together of miners of the same model works pretty great as well. During the testing phase, the Avalon 741 showed some remarkable characteristics such as a power consumption of 1050 watts and the fan at 5400 rpm, which was quite enough to make the unit run pretty smoothly and keeping it cool.

The Avalon 741 is great in the sense that it is big on performance and also manages to not deviate much from the actual output specified. It handles ambient temperatures such as 78 F pretty smoothly and runs with absolutely no hiccups or problems.

With an amazing build quality and work output that is as fantastic as this, you cannot go wrong with the Avalon 741. It also lasts longer and is proven to be a worthy addition to most data centers or home mining systems.