The BM1387 ASIC Chip

The world’s first bitcoin mining ASIC based on the 16nm process node

The BM1387 chipset is built using TSMC’s 16nm FinFET technology. The Antminer R4’s BM1387 chip delivers a record-breaking 0.098 J/GHs. It is currently the world’s most efficient bitcoin mining chip on the market. Each Antminer R4 has 126 BM1387 chips that delivers higher hashrates and better efficiency than any bitcoin miner except the Antminer S9 Vindicator.

A Groundbreaking Custom-design Fan

Fans have long been the single biggest source of noise in any bitcoin miner. The Antminer R4 Switchblade design team found a simple but unique solution to this problem: to do away with the traditional noisy fan and replace it with a state of the art fan design that is cutting edge in our industry! Inspired by the “fan” of a silent split air conditioner, we designed a fan that can make less than half the noise of the standard miner fan. What’s more is that its speed is automatically controlled to ensure it never creates more noise than is absolutely necessary.

Special-design Control Board to Reduce Latency

The R4’s control board uses a dual-core ARM® Cortex™-A9 based Application Processor Unit (APU)

The control board for the Antminer R4 Switchblade employs the Xilinx’s ZYNQ-7000 family system-on-a-chip (SoC) that integrates a feature-rich dual-core ARM® Cortex™-A9 based processing system (PS) as well as a 28 nm Xilinx programmable logic (PL) in a single device and supports Gigabit Ethernet to ensure that mined blocks are submitted instantly. – See more here:

Meticulously Designed for Your Home

Mega-terahash performance within the space and sound of your home electronics

Producing a sound that’s usually less than 52dB, the R4 manages to deliver a monstrous hashrate of 8.6TH/s with a sound level unseen since the existence of 1TH/s bitcoin miners. With a height of 100mm, it is slim enough to rest comfortably in your bookshelf or desk

Antminer R4 Switchblade


The R4 Switchblade 8.6Ths Bitcoin Miner

  • 845Watt
  • 52db
  • 8.6Ths
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