Excellent quality and timeliness
Altair shipped a.control board for an s19k pro on time and well packaged. Also the correct firmware for my miner was loaded, so all i had to do was plug and play. I was mining within 30 mins, thanks!
By Af
Saturday, November 7, 2026 · Customer reviews of US businesses

The Fair Hearing score
Excellent
588 reviews
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Altair Technology owns and operates Bitcoin mining facilities in St Charles, Missouri. We have deep expertise in ASIC mining.We sell Bitmain, Whatsminer, Gekkoscience and other popular mining hardware and accessories. We ship worldwide and aim to be a one-stop-shop for all popular mining hardware, parts and accessories. We hold our inventory in Missouri and our in-stock items typically reach US & Canadian customers in 2-3 business days.We also consult with mining farm operators and investors on design and maintenance of cryptocurrency mining farms.
Altair Technology LLC (altairtech.io) has 588 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
588 approved reviews, newest moderated first
Altair shipped a.control board for an s19k pro on time and well packaged. Also the correct firmware for my miner was loaded, so all i had to do was plug and play. I was mining within 30 mins, thanks!
By Af
Order was backorder, still delivered in 3 days of purchase. These guys crushed my expectations, underpromise and overdeliver! Appreciate it, thanks guys!
By Todd H.
Helpful with support and quick shipping. Love my order!
By notta
Ordered some mining control boards from Altair and very satisfied with entire experience. Super fast shipping and everything works perfectly. Also nice that they are US-based, so didn't have to deal with international shipping headaches. Have ordered parts from other sellers, but Altair is going to be my primary source from now on. Can't recommend them highly enough.
By boerst
Best mining shop in the universe! Kevin will go the extra mile and help in anything! Repeating happy customer. Thanks
By Reinaldo Perez K.
Barminer is awesome. Couldn’t have set up my mining hash without him.
By Chet B.
I purchased an Urlacher kit for my T19 from the team at Altair last year, and the experience was seamless. The Bitcoin transaction went smoothly, and when the package arrived, it included clear, detailed instructions that made installation a breeze. The folks at Altair really go above and beyond to ensure you have everything you need, and their customer support is top-notch.
By Jordan
100% positive experiences. I now have multiple purchases, all flawless. Buy with confidence.
By Travis