BTC Fan Guard for 6", 8" or 10" Inline Duct Fans
BTC Fan Guard for 6", 8" or 10" Inline Duct Fans
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Introducing our revolutionary Filter Guard, the essential solution for protecting your Bitcoin mining equipment and AC Infinity S8 inline duct fan while keeping your little ones safe. Crafted from high-quality PETG material with an incredibly high tensile strength, our Filter Guard ensures a secure environment for both your equipment and your kids 👍🏻
Designed to fit 8" input and output fans used in Bitcoin mining setups, our Filter Guard provides reliable protection while maintaining optimal airflow. With its sturdy construction, it can withstand temperatures up to 70°C, ensuring long-lasting performance even under intense mining conditions ⚡️
Our Filter Guard easily snaps onto your fan intake or exhaust, providing a secure and rigid fit. For enhanced safety, it can be used with an 8" metal hose clamp (not included) to create an airtight seal, preventing any accidental contact with the fan blades. You can have peace of mind knowing that your children can play safely around your mining equipment
Protect your valuable Bitcoin mining gear and create a safe environment for your kids with our top-of-the-line Filter Guard. Order now and experience the difference for yourself! 💪🏻




I love these 10" fan guards. They are a perfect fit and thats not surprising after I saw how everything was packaged. "Devils in the details"
The 8in guard won't fit cuddly an 8in ac infinity silencer. I had to use hvac tape to glue it to the silencer. You need to create these with at least 3/16 extra diameter to truly fit 8in openings cuddly. Also your bitcoin B reduces the amount of air in. I ended up using a tennis raquet like mesh to allow more air in. I would remove that altogether and just add stickers on your shipment
I have placed a couple orders with the guys at Nakamoto mining. A high quality product. Definitely get the Njord board for the most effective energy management on the miner. Bottom line, you are not running thee in your house without some noise reduction. You should buy this RIGHT after getting the particular model of s21. PRO and XP you should run 10" shrouds for max effectiveness. I am testing further. Below pro an 8" will be fine. The 10" shroud increases your form fctor by 12" in length and is considerably "bulkier" than the 8" fan and shroud. 10" shroud kit on an s21 XP is 41" long. You need 110 power by your 240 as well. Also an 21 needs a 30AMP pdu and you cn only run ONE per 30AM pdu. my s21s have drawn as much as 22 and onthe shroud run 11-14 amps. Further testing needed. Great product. Thanks Nakamoto San!!
BTC Fan Guard for 6", 8" or 10" Inline Duct Fans
Recommended if you have kids or just don't trust yourself in a workshop environment
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from 224 reviews
I love these 10" fan guards. They are a perfect fit and thats not surprising after I saw how everything was packaged. "Devils in the details"

This system allows unrestricted airflow though the 8" Duct Fan while keeping all the dust and small flying critters out of my Hashboards. Stupid easy to install! Thanks Guys, for another brilliant product. Oh and LOVE those crazy stickers you include!!!

Placed my order, received a shipping confirmation quickly, spoofers arrived in excellent condition (packaged very well), plug in and play. Smooth Transaction. Thank you Nakamoto Mining!

awesome product

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Mesh Filter for 8" Inline Duct Fans

Njord Board — ASIC Spoofer with Automated Fan Control

I love how the shrouds look. So many little details added to it and it fits well my inline fan. My only trouble is the spoofer, they dont work for my L9 with the Feb 2025 firmware.

Packaged great, some extras and excellent products.

Impression 3d propre et installation facile

Very happy with the shrouds

I wish the fan would automatically shut off when I turn my miner off but besides that it seems to work great

Njord Board — ASIC Spoofer with Automated Fan Control

Awesome shrouds :) Highly recommend

Loki delivers. Single board operation for the summer or power limited locations. Thanks Nakamoto Mining!