Antminer S4

The Bitmain Antminer S4 is a legacy Bitcoin ASIC miner released in 2014. In the current 2026 market, it has transitioned from a productive mining rig to a historical collectible or educational tool due to extreme inefficiency compared to modern standards BitmainJglobalmining.

1. Product Specifications & Performance

The Antminer S4 was designed as a 3U rack-mountable unit, a departure from the compact tower designs of its predecessors.

* Hashrate: 2.0 TH/s (Terahashes per second) JglobalminingMinerstat.

* Power Consumption: ~1,400 Watts Jglobalmining.

* Efficiency: ~700 J/TH. For comparison, modern 2026 units like the Antminer S21 achieve 17.5 J/TH AsicmarketplaceD-Central.

* Algorithm: SHA-256 (Bitcoin, Bitcoin Cash).

2. 2026 Market Trends & Insights

The market for the S4 is no longer driven by commercial mining, but by niche interests:

* Operational Unprofitability: At a standard electricity cost of $0.08/kWh, the S4 yields a net loss of approximately -$2.61 USD per day Minerstat. It only breaks even if electricity is cheaper than $0.0024/kWh Jglobalmining.

* Secondary Market Status: B2B platforms like Alibaba primarily list current-generation hardware (S19, S21 series). The S4 is rarely found in bulk and is mostly traded as "vintage" hardware on peer-to-peer secondary markets for hobbyists .

* Educational & Hobbyist Use: The primary value of an S4 today is as a space heater with high noise levels, or as a low-cost tool for learning the mechanics of ASIC mining and rackmount hardware maintenance Jglobalmining.

* Solo Mining "Lottery": Some enthusiasts use legacy miners for solo mining, though the probability of finding a block with 2 TH/s against a 2026 network hashrate is statistically near zero JglobalminingD-Central.

3. Comparative Market Standing (2026)

The evolution of the Antminer series highlights the S4's obsolescence: