Ebit E9.2 Miner 12T Review

In an industry which is monopolized by Bitmain, the name synonymous with Bitcoin mining equipment for better or for worse, it is difficult to think of a lesser known manufacturer even trying to get a large scale product out, much less to have it provided at a competitive price.

That is why, when ZheJiang Ebang Communication announced its SHA-256 Ebit E9.2 12T Miner, it was bound to attract the attention from the mining sector not only for being introduced in a market that is dominated by larger companies, but also due to its bold claims of providing a hashrate of 12 TH/s with a power consumption rate of 1320 Watts.

The question which is presented right away against such claims, is of course, the ever present: “Does it really work?”

And to answer that, we will need to take a closer look at what the E9.2 Miner brings to the table.

Ebit E9.2 Miner Specifications

The E9.2 Miner is a predecessor of the Ebit E9, which had been released in 2017. This new iteration of the E9 series is an improvement on the previous model, almost doubling the previous hashrate of 6.3 TH/s that was promised by E9 with its power consumption of 910 Watts (that was 140 W/T as compared to the E9.2’s 110 W/T).

But the hashrate and power consumption are not the only aspects that have been improved in the E9.2, since it sports upgraded specs in almost all aspects.

With that being said, there have still been a few issues with these upgrades, so without any further delay, let’s go through the most crucial specifications and their real-world efficacy in order to determine if getting the Ebit E9.2 at its specified price of $750/unit is worth it.


As specified above, the hashrate for the E9.2 is reported to be 12 TH/s, with a variable of -5%~+10%. It means that while the projected hashrate stays at 12 TH/s, it could very well fluctuate and might just not stay the same.


The chips used in the E9.2 happen to be DW1228. These 10nm chips were manufactured for Ebang by Samsung last year and were the same chips that the company had originally used on the E10. Since the industry standard currently stands at creating and using 16nm chips, these 10nm chips are considered as a sought-after upgrade and are not used widely by other manufacturers.

Power Consumption

The on-paper power consumption for the E9.2 Miner remains at 1320 Watts. It has been noticed through various mediums that the power consumption stays true to its increased variable more than the specified value, which often makes it go more than 1500 Watts.

The unit at the price of $750, which is the only option available at the official Ebang site, is sold without a PSU. The recommended PSU to use with the miner is the 1800 Watt – 2000 Watt PSU by Ebit, which at the time of writing costs around $100.

The rated voltage, as marketed by Ebang, is said to be 11.8 V ~ 13.0 V.

Weight and Dimensions

The E9.2 unit weighs around 4.7 KG, which remains understandable since most miners of this stature come sporting the same weight.

Whereas, the unit’s dimensions happen to be 290mm x 126mm x 155mm, which also paints the picture of the miner being on par with industry standards.

Fans and Temperature

The E9.2 comes with 2 fans that are installed within the unit in order to ensure that its recommended temperate of being between 0 °C – 40 °C is maintained optimally.

The humidity is projected as being 5% – 95%.

Noise Level

The noise level for the E9.2 is being presented as 70db, but it has been noticed that the unit gets to be noisier than that, which is actually in line with the performance of previous miners manufactured by Ebang.

Summarized Specifications

Comparison with Bitmain Antminer S9i-14 TH/s with PSU

At $650 with a PSU to boot, the Bitmain Antminer S9i-14 TH/s with PSU is the most relevant competing unit to the Ebit E9.2.

As the name suggests, the Antminer sports a projected hashrate of 14TH/s. However, while its ideal hashrate surpasses that of E9.2 12TH/s, it does falter in other aspects.

As shown above, it excels in terms of hashrate, weight, and even takes the cake at power consumption, but the potential efficiency that it poses with the 16nm chips is lesser than what E9.2 brings to the table with the more advanced 10nm.

However, it is not a secret that Bitmain excels in the overall efficiency of its mining units as well as its after sales support in case things go awry for its users, which is one of the many reasons why it has reached its status as the one to rule the cryptocurrency mining space.

Ebang, on the other hand, does not seem to have the same level of prowess and that is where its downfall comes in terms of user adaptability – which also leads us to talk about Ebang’s current issues in terms of customer service and support.

Ebang Customer Service Leaves a Lot to be Desired

Ebang does not seem to have a very good reputation when it comes to after sales service or even providing the specified service without any noticeable disruption.

“They could barely support it when they had 1 or 2 and I’m just talking firmware updates, hardware support never really seems to have existed.” A user on BitcoinTalk mentioned when sharing their views on the upcoming line of products by Ebang.

Others were blunter and quite direct in their views about the company.

“firmware is sh–, help is sh– , response is sh–. [sic]” A Reddit user stated while referring to the firm.

Whereas, another user mentioned that the units are not exactly low maintenance and it would not be a wise decision to rely on them completely.

“Yeah a bit. They’re loud and hot and not the most reliable. I wouldn’t recommend them for home use. If you’re keeping them in your garage or a shed, a couple would be ok.” The user explained before adding that it would be advisable to get something else for a larger system.

“If you’re thinking of a bigger operation, maintenance on these things would keep you pretty busy.” They mentioned.

Is the Ebit E9.2 Miner Worth It?

As the Reddit user mentioned, if you are looking for a set up where you are ready to endure the sound and maintenance, then going with the E9.2 Miner won’t hurt. However, that is only until you look at the comparison with Antminer S9i in terms of price and projected returns.

The first comparison is with the hashrate provided by the companies, with the profitability calculated against $0.12, the average kWh rate of electricity in the U.S., and Bitcoin with a rate of $8,175.

Ebit9.2 12 TH/s


Antminer S9i 14 TH/s

According to the aforementioned projections, the Antminer would be providing its users with more than double the profit than Ebit9.2.

Now, let’s look at the profitability of both miners with an increased power consumption rate but with the same cost of $0.12 kWh.

Ebit9.2 12 TH/s

Antminer S9i 14 TH/s

As shown above, Ebit E9.2 seems to be staggering behind in profitability when the increased power consumption was thrown into the mix.

This coupled with the history of Bitmain in providing high-quality miners that more often than not stay true to the projected rates of performance and power consumption, and the relative unfamiliarity with the brand name of Ebang and Ebit as well as their customer reviews in the past allude towards the fact of Ebit9.2 losing this battle to Antminer S9i 14 TH/s.

The last deciding factor gets to be the price. Users do not only have to pony up $750 for the Ebit9.2, but since it also comes without a PSU, a $100 will be added on top of it to make it functional deal in $850.

Whereas the Antminer S9i is not just up for grabs at a cheaper price of $650, but it also comes with a PSU. That makes it about $200 less costly than Ebit9.2, and the aforementioned features of brand recognition and after-sales support only add to its charm.

If you also think of the resale value, then the fact that it would be far easier to sell off an Antminer than an Ebit miner in case of an emergency would also be a no-brainer.

Therefore, while Ebit9.2 comes with a lower chip size and the promise of more efficiency, it gets surpassed by the more economical, well known and higher hashrate counterpart that it has unfortunately found in the Antminer S9i.

Ebit E9.2 Miner Rating: 3.5 - Review by

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