The 21energy S9 Silent includes:
- A used and refurbished Bitmain Antminer S9 with 12.5 TH/s.
- A used and functional Bitmain APW3++ power supply unit.
- 2 x 140mm Noctua high-performance fans – NF-A14 iPPC-3000 PWM instead of the original 120mm fans.
- 2 ventilation adapters from 120mm to 140mm made of 1.5mm galvanized sheet metal.
- Aluminum sealing tape for a completely airtight ventilation adapter.
- 1 extremely quiet 60 mm Noctua fan – NF-A6x25 PWM. This is installed in the power supply and replaces the much louder original power supply fan. A 2-to-3-pin fan cable adapter is also installed in the power supply.
- The Bitmain Antminer S9 comes with the latest Braiins OS+ with autotuning and powertarget function.
- Can be operated from 380 to 1000 watts and even less power when disconnecting hashboards.
- Efficiency of up to 75 J/TH at 700 to 800 watts.
- Bitmain Antminer user manual.
- The bundle is delivered fully assembled.
- The miner is checked for functionality, cleaned*, and well protected before shipping.
*The miner is cleaned with an air pressure nozzle to remove dust from the cooling fins. Very small dust particles may still be present in the cooling fins and the miners may still be slightly dusty on the outside. After air pressure cleaning, the miner is reassembled and tested.