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This item is eligible for return within 30 days of receipt
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Availability:
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At a glance
- Condition
- Used - Like New
- Model
- FS7
- Storage
- 300 GB
- Dimensions
- 3.74 x 0.79 x 0.59 in
- Weight
- 5 oz
- Hard Disk Interface
- USB 1.1
- Special Feature
- Portable
- In the box
- GekkoScience Compac F 300Gh/s+ USB Bitcoin minerUser manualPowered USB hub
- Works with
- Computers
Description
Brand new usb stick miner manufactured in the USA by legendary GekkoScience (Sidehack) using S17 BM1397 chip. Currently the most efficient USB miner ever manufactured. You must provide extra cooling (table fan, usb fan, etc) when running the miner because these can get very hot (especially when running over 400 MHz frequency) Requires powered usb hub that can supply 2 amps per port! Top speed running on 800MHz with 5 amps (25w) per port per usb miner is 500+ GH/s!!Clock speed is 400MHz to 800 MHz producing speeds ranging from 200-500 GH per device.
Specs 16
| Digital Storage Capacity | 300 GB |
|---|---|
| Hard Disk Interface | USB 1.1 |
| Connectivity Technology | USB |
| Brand | GekkoScience |
| Special Feature | Portable |
| Hard Disk Description | Solid State Drive |
| Installation Type | External Hard Drive |
| Specific Uses For Product | Business, Personal |
| Hard Drive | Solid State Drive |
| Item model number | FS7 |
| Hardware Platform | Mac |
| Item Weight | 5 ounces |
| Product Dimensions | 3.74 x 0.79 x 0.59 inches |
| Item Dimensions LxWxH | 3.74 x 0.79 x 0.59 inches |
| Hard Drive Interface | USB 1.1 |
| Manufacturer | Gekkoscience |
No specs match.
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Works as described !!
Does not come with instructions for setup, will have to look online or from "bitcoinmerch" website for instructions, no issues !! works as described !! Great for devs and/or begginers wanting to learn on **Can be difficult to start up if you don't know what you're doing **
Reviewed in the United States on March 15, 2023 by xXHenneBXx xXHenneBXx
Horrible software
The only software used to handle the usb device is a bat and conf file, if your usb crashes there is nothing to stop the usb from trying to perform the previous task and you will have to do a complete reboot to regain control. The guide is only about two pages long when explaining how to install and configure and only shows one way to configure, Overclocking is nearly impossible and is an ON/OFF function that doesn't allow you to control the amount of overclocking. To make things even more frustrating there is no heat sensor on the device and no way to indicate that it's overheating. Once I got it setup and running im looking at 2,500 monthly sat income or 0.0003806 USD monthly. Since im losing money to run the usb I would say this product is a waste until the developer decides to make the supporting software more user friendly
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Reviewed in the United States on November 14, 2022 by Courtney Dunn
this thing was terrible only get 10 gh/s and it quit working
terrible product
Reviewed in the United States on June 28, 2023 by Randy S.
Great for tinkering and solo mining
You can stack multiples together and configure them with an app like CGMiner. When it comes to overclocking, it's crucial to remember that these devices require proper cooling to perform optimally. For instance, I consistently run them at 300 MHz with no issues, but removing the fan can lead to overheating and errors, which CGMiner will try to mitigate by down-throttling. Eventually, the devices may just give up until they cool down (I tried but had no joy without cooling). I manage this configuration using CGMiner I built on this system: Raspberry Pi 5 Model B Rev 1.0 Linux version 6.6.20+rpt-rpi-2712 ([email protected]) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT Debian 1:6.6.20-1+rpt1 (2024-03-07)
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Reviewed in the United States on April 13, 2024 by D. Means D. Means
My lack of patience
I actually returned it because I didn't have the patience to mess with it..lol. It came in perfect condition though and quick delivery.
Reviewed in the United States on September 5, 2025 by wes e spindler
These are great!
These are a fun learning tool for sure. Active cooling is a must. I blew the traces out of a Raspi Zero after mining through it for 2 weeks (pulling more than 2 amps through it), but then found the atolla 4 port USB 3.0 hub on here would allow 2.9 amps to pass through (by testing) - and get close to 300 GH/s at 475 MHz. I used a Klein USB ammeter to ensure not to go over 3A. AltairTech has Gekko USB hubs that are built to provide the power these things require. I suggest getting one if you want to monkey around with more than 1 of these, or to make a small lotto mining rig. A Raspberry PI 4 is recommended for that.
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Reviewed in the United States on October 17, 2023 by Chris in NH
Great little USB build for enthusiasts. Don't expect a quick ROI unless your a lucky solo miner.
I set mine up on a Windows 10 rig. I currently have 5 running at 630MHz averaging 420Gh/s. I don't have experience with using these on a Raspberry. They're pretty much bulletproof once you get them dialed in. Having access to the voltage screw helps. These are meant for those who like to tweak/overclock, not those looking for a quick profit. Setup in Windows was not so much plug and play. I had to run the sticks through Zadig, reinstalling the USB drivers. Then CGminer was able to recognize them. There is a "Gekkoscience FS7 USB Setup Guide" pdf that is floating around on the web that has some setup information in it. I recommend looking it over.
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Reviewed in the United States on September 26, 2022 by Kelley
GekkoScience Compac F 300Gh
I have and use two of these Red ones now. Defiantly faster than the Green one I have. It does run hot you need fans. I do no over clocking, speeds do sorta match the advertised speeds. It varies. It does mine BCT, DEM, and a few other SHA256 algorithm based coins. Results will vary.. Something to Experiment with, takes some study.. Probably won't make anyone rich..
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Reviewed in the United States on January 17, 2023 by D. Beymer