GekkoScience Newpac USB Bitcoin Miner

Description

GekkoScience Newpac USB Bitcoin Miner.
28+ gh/s mining speed(50+ gh/s possible with adequate power and usb port above spec)
.15 watts per gh!
Completely silent operation
2x Bitmain BM1387 chips
Requires powered usb hub or port with minimum .5 amp output for minimum of 15gh/s. With 1 amp+, you will be able to fully utilize both chips and run at 28gh/s or higher.
The Newpacs are the only items in the pictures that are forsale.  The Gekkoscience USB Hub is currently not for sale, or may be listed separately.
These work as intended and does require additional cooling to use.  I kept USB fans over them and ran at 300Mhz with screen shot showing results.  At 300 they would pull just over 60Gh/s each.  These units never overheated and were inside in an air conditioned room as well with constant fans on them.
I am selling these off as I have moved onto other hobbies (moving away from crypto mining).
For more information in regards to setting up a newpac please refer to their forum thread listed here: https://bitcointalk.org/index.php?topic=5053833.0
I ran these on a Raspberry Pi without issue as I preferred Linux over Windows for anything Crypto related due to stability.
Due to the nature of Crypto there are no returns or refunds.
Thanks