The Antminer T15 is an ASIC miner produced by Bitmain, a giant in the crypto miners' production industry. It is an addition to Bitmain's Antminer Application Specific Integrated Circuit brand, which has proved itself a force reckoned with in the blockchain industry. Launched in 2013, the Antminer brand has always shown the promise of leading technological specifications and excellence in mining quality for their products. Antminers, with their superior performance and excellent efficiency, lead the mining industry, giving Bitmain a 75% share worldwide. 

About Antminer T15

Released in December 2018, this miner was regarded as one of the best at the time. The Antminer T15 comes with a weight of 6.6kg and a size dimension of 176 x 205 x 279mm. This design makes the miner compact and ideal for stacking in mining farms. It uses an Ethernet interface and comes with an APW8 power supply unit included.

The Antminer T15 comes with two modes: Energy saving mode and High-performance mode. Both modes and features are optimized for end-users, meaning that the miner will work correctly no matter the user's mode. The user will have to use this ASIC miner in power saving mode to either reduce heat and noise or if they can't support increased power consumption. This device mines with a hash rate of 21Th/s in energy-saving mode and consumes a power of 1260W. 

Specifications

The high-performance model promises a top hash rate of 23Th/s with a power consumption of 1541W. The power consumption goes up by some percentage, but this is understandable as it needs more power to make more hash attempts.

The energy-saving mode works with a power efficiency of 60J/Th at a temperature of 25-degree Celsius, while the high-performance mode gives a power efficiency of 67J/Th. The Antminer T15 comes with Bitmain's innovative 7nm chips, making it more energy-efficient and enabling it to mine with the SHA-256 algorithm. 

The SHA-256 algorithm is a cryptographic hash function that can mine up to 40 coins. But its most profitable top coins are Bitcoin(BTC) and Bitcoin Cash(BCH). 

Temperature and Air Circulation

This device makes use of two fans that are parallel to each other. These fans make sure that heat circulation and dissipation occurs to avoid overheating and a stable working condition. The fan speeds are about 2760 rpm and 3000 rpm, with the best PCB temperature of 58℃, 61℃, 65℃. 

The design structure is very different from earlier models, and the distance between the air intake and outlet is about 160mm. This design is different from the S9 model, which has a distance of 255mm between its air intake and outlet, and it has more heat sinks and higher air resistance. 

Power

For the Antminer T15, the power board is set at the upper part, while the output goes through a copper strip. Heat removal is like the S9 series. It has three hash boards, each hash board has up to 60 chips totaling 180 Pcs, and the hash chips are BM1391AE.

The miner's weight is 6.6kg with a 176 x 205 x 279 mm dimension, and the required input voltage is 220V. It usually comes with a power supply included but sometimes doesn't come with a power cord, so there is a need to get a 10A cable later. 

Noise Level

This miner has a noise level of 75dB, which is quite normal as most miners have a noise level of 60 to 80dB. A noise level of 75 dB is equivalent to a vacuum cleaner. The device is suitable for residential buildings but is made for mining farms.

Profitability

While metrics like power consumption, cost, and hash rate are necessary for considering profitability, one needs to look at all available coins to mine and select the best. Most Bitcoin miners pay off in about two years.