GekkoScience Newpac Antminer USB Bitcoin Miner 100+GH/s BM1387

Description

GekkoScience Newpac Antminer USB Bitcoin Miner 100+GH/s BM1387
Brand New
, just got these in from Bitcoin Merch. These units were opened and tested. I was able to overclock em to around 90-100 GH/s but only ran it for a couple of minutes so it def coulda gone higher. Unfortunately it seems like I would need to run these thru a different controller because it's too much for one RPi4 to handle. [I am running 12 sticks + 2 Gekkoscience R606's on that rig]. I was planning to use and mine with these but it seems like a lot of people want em right now so i'll let em go since I still have some running.
- If you can overclock em right, you can get up to 130 Billion Guesses Per Second [1 GH/s = 1 Billion Hashes/attempts per second at guessing a valid Bitcoin block!]
Have a handful [8] pretty much new and barely used. Will arrive in original packaging.
Mines at ~25 to 28+ GH/s at stock speeds (these are ports like your regular computer port @ 100 MHz)
Strongly recommend a powered USB hub + fan. You'll need to over clock it a bit to get higher speeds of 70-130+ GH/s
These consume an average of .15 W per GH/s
No noise! That's why I love these things. Put em in some random corner and let em hash. I pool mine, every satoshi counts!
Has 2 of the Bitmain BM1387 chips, same chips as the Antminer S9
Note - the one in the picture is not the one you will receive, but you will receive one just like it. the Newpac Bitcoin Miner will arrive in the same packaging received from the manufacturer.
I also received a negative feedback from someone who probably had no idea what they were buying or how to properly use it. If you don't know or understand what you are buying, please DO NOT purchase this listing. I don't mind answering a couple of questions but the units are in brand new working condition, still sealed. I will NOT accept a return if you choose to improperly overclock and burn out your unit. I strongly
recommend
running this on standard settings until you are 100% sure you know what you are doing.
Original description from Bitcoin Merch:
GekkoScience NEWPAC Dual BM1387 Stickminer
Features a pair of Bitmain BM1387 chips and a stock clock setting of 100MHz for 23GH
The units are capable of running at 90GH, and it’s theoretically possible to overclock to 130GH but this will require a strong hub and and advanced custom cooling setup. All units are tested at 45GH before shipping and run for a full hour before being labeled and packaged.
These units function though a modified cgminer, which gives you command-line frequency control to adjust the hashrate.
The new GekkoScience CGMiner is able to detect and recover from the same kind of issues which would have caused a “ZOMBIE” condition on the old 2Pac units, meaning increased reliability and less attention to maintain long-term operation. The stick is dimensionally identical to the 2Pac, so any custom hardware designed for one will work for the other. And of course it’s got BLINKY LIGHTS now showing that it is mining.
This entry level miner is good for anyone interested in tweaking and testing stuff, or for anyone wanting to “get into mining” without spending a lot of money or burning a lot of power. It’s designed as a flexible yet affordable tool to learn a lot about bitcoin mining and its hardware.  While its small and doesn’t offer the same hashing power as the big pod systems, the GekkoScience NEWPAC is the most power efficient Bitcoin miner on the market today.
GekkoScience NEWPAC Dual BM1387 Stickminer USB Specifications:
GekkoScience Compac NEWPAC is a USB miner containing 2 BM1387 core chips.
Stock HashRate of 23 GHs w/ no external fan necessary.
Highly adjustable clock speed allowing upwards of 45 GHs/second WARNING overclocking Voids Warranty AND REQUIRES external cooling.
Requires Official Custom CGMiner Build 4.11.1 available: Here
Official Bitcoin Forums – https://bitcointalk.org/index.php?topic=5053833.0
The stock settings on the miner run them at 23 GHs using 100Mhz Frequency Setting.
There is absolutely no warranty on these miners when they are overclocked. All units are confirmed working before shipment (a confirmation will be included with the shipment. Improper overclocking can burning out the chip and voids the warranty. A restocking fee of 30% will be assessed for all returned units found to have been burned out by overclocking.