First Impressions: Hands on With the Bitmain AntMiner R4

In the days since Bitmain announced the AntMiner R4, we have wondered whether the machine really performs as advertised. After some hands-on time with the R4, our first impression is that it seems to achieve the balance of power, performance and noise output Bitmain was shooting for.  

Disclosure: AntMiner R4 was provided to review.

Also Read: Bitmain’s R4 to Bring an In-Home Experience to Bitcoin Mining

AntMiner R4 First Impressions

The R4 and the new APW5 PSU look like they could be an impressive pair. From a distance of 3 feet in an average-sized living room with an ambient temperature of 74 degrees Fahrenheit, the R4 and APW5 put out a combined 51 dB of noise.

The AntMiner R4 also runs at the specified 8.6 th/s, while achieving that relatively quiet 51 dB. Here are the specifications that get you to 8.6 th/s at 900 watts with 51dB:

dB Levels of R4 and APW5

Hash Rate: 8.6TH/s

Power Consumption: 845W +9% at the wall

Noise level: 52dB (at an ambient temperature of 35°C)

Chip quantity per unit: 126 x BM1387

Rated Voltage: 11.60 ~13.00V

Product size: 515mm (L) x 100mm (W) x 222mm (H)

Operating Temperature: 0°C to 40°C

Network Connection: Ethernet

Read more ... source: TheBitcoinNews

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