NewPac Setup Windows

Setup, Software, Configuration for Windows 7 or higher

Installation and Accessories

This USB Stick Miner requires a actively powered USB Hub which can independently provide 2 A for each USB port. We have achieved good results with several USB 2.0 Hubs from Anker or Orico and offer the GekkoScience 7-Port USB Hub which was specifically designed for the operation with USB stick miners. Users reported several compatibility issues with USB 3.0 Hubs with Intel chipsets. For more details please check the following link on

We recommend a quality USB fan for operating clock rates greater than 150 MHz. We achieved best results with Arctic Breeze Mobile 92 mm (quiet, performant, high-quality).


2Pac USB Stick Miners can calculate Hashes for SHA256D based Coins using a custom CGMiner branch which is available for download as a pre-compiled version for Windows 7 or higher:

When plugged in, the Miner is registered in Windows Device Manager as “NewPac Bitcoin Miner”. For Windows 7 and Windows 10 operating systems we recommend the use of Zadig USB driver & tools  ( In case of problems with the device detection, please try the Zadig WinUSB (libusb) driver:

Please note: After installation of Zadig USB driver tools, activate the List All Devices” option in “Options” menu if the Miner does not show up:

Zadig USB Tool

The following CMD command can be used to test if the Miner was correctly identified by the CGMiner Mining software:

cgminer.exe -n

With Windows PowerShell you can check if the right driver has been installed:

PS C:> gwmi Win32_USBControllerDevice |%{[wmi]($_.Dependent)} | ? { $_.DeviceId -match "GS-" } | sort Manufacturer,Description,DeviceID | ft -groupby Manufacturer Description,Service,DeviceId -auto


The following command will start up the CGMiner Software (example):

cgminer.exe -o stratum+tcp:// -u 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr -p x --suggest-diff 32 --gekko-newpac-freq 150

The Pool configuration which is used in the example above should be replaced by your own pool configuration data. Please contact your pool operator or check the pool setup guide for more details. The example above shows a Solo-Mining configuration in Con Kolivas’ Solo Mining pool.

The Clock Rate can be set with the following commandline parameter:  gekko-2pac-freq. If you want to operate your Miner without active cooling, we recommend a Clock Rate up to 100 MHz max.

The mining performance depends on your Clock Rate and Core Voltage setup. You can calculate the average hash rate using the following formula:

  • Performance in GH = 0.228 * MHz
  • Example GH = 0.228 * 100  => Hashrate ~ 22.8 GH/s (+-15%).
  • The higher the hashrate, the bigger is the deviation from this average, caused by ASIC manufacturing tolerances.

Performance, power consumption and efficiency chart:

For enhanced support please visit the public support forum on or write us a e-mail.