We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Compact orange rectangular miner with three cooling fans and visible vents, 22 by 12 by 15 centimetres

Stellapex

Stellapex NerdQX 8.1 TH/s Orange mining hardware

SKU CH-B3EM-QSNHN

SHA-256 solo miner delivering 8.1 TH/s at 138 W with 0.017 J/GH efficiency, 2.4 GHz WiFi, three fans under 40 dB, and a compact 22×12×15 cm orange chassis

  • TypeHome solo miner
  • Crypto AlgorithmSHA-256
  • Compatible CurrencyBitcoin (BTC)
  • Mining HardwareBM1370
  • Hashrate8.1 TH/s
  • Network Connection2.4GWifi
  • 1 TH/s hash rate for strong Bitcoin mining performance
  • 138 W power draw keeps electricity costs low
  • 017 J/GH efficiency reduces energy spent per gigahash
  • 4 GHz Wi-Fi enables simple pool connection and remote monitoring
  • Under 40 dB noise level suits quiet home or office use

Purpose & Audience

The Stellapex NerdQX 8.1 TH/s is a compact SHA-256 solo miner built for home or office use. It delivers 8.1 TH/s hash rate while drawing 138 W at the wall, yielding an efficiency of 17 J/TH. The orange chassis measures 22×12×15 cm and weighs 1.01 kg, cooled by three fans that keep noise below 40 dB.

Fit & Limits

This unit suits individuals who want a quiet, low-power device for lottery-style Bitcoin mining on a 2.4 GHz Wi-Fi network. It is not for operators who need rackmount density, Ethernet connectivity, or hash rates measured in hundreds of terahashes. Buyers expecting pool payouts comparable to industrial hardware will not see that scale here.

Deciding Spec

The 8.1 TH/s hash rate at 138 W power draw is the single figure that determines whether this miner matches your electricity cost and earnings target. At 17 J/TH it sets the baseline for daily coin output and payback calculations.

Highlights

  • 1 TH/s hash rate for strong Bitcoin mining performance
  • 138 W power draw keeps electricity costs low
  • 017 J/GH efficiency reduces energy spent per gigahash
  • 4 GHz Wi-Fi enables simple pool connection and remote monitoring
  • Under 40 dB noise level suits quiet home or office use

Specifications

BrandStellapex
SeriesSMT-NerdQX-8.1
ModelSMT-NerdQX-8.1
TypeHome solo miner
Crypto AlgorithmSHA-256
Compatible CurrencyBitcoin (BTC)
Mining HardwareBM1370
Hashrate8.1 TH/s
Network Connection2.4GWifi
Fan3
Power SupplyAC Adapter
Power Consumption216 W
Power Efficiency17 J/TH
Dimension22*12*15cm
Weight1010g
Package Content1 NerdQX miner
1 AC Adapter
1 Product manual

Questions about this item

Which hashrate version of the Stellapex NerdQX should I pick for home solo mining?

The SMT-NerdQX-8.1 model delivers 8.1 TH/s using four 7 nm BM1370 ASIC chips and is the only version listed for this product line.

What does the 8.1 TH/s figure mean once the miner is running in my house?

It means the unit can perform 8.1 trillion SHA-256 hashes every second while drawing 216 W from the wall, yielding an efficiency of 17 J/TH under typical 2.4 GHz Wi-Fi pool connectivity.

What network interface does the NerdQX use and what does it limit in practice?

Built-in 2.4 GHz Wi-Fi handles pool connection and remote monitoring through the NerdX control panel; it caps the miner to 2.4 GHz networks only.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.