Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
588 reviews
Altair Technology LLCSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
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
all is working shipping was fast. thank you
By francis B.
Response from Altair Technology LLC· Jun 8, 2026
Thank you for your feedback! We’re happy to hear everything arrived quickly and is working as expected. We appreciate you choosing us. Altair Technology
I bought an Bitmain Antminer S19K Pro miner from Altair a few weeks back. As I started mining the miner kept rebooting and it was useless . I contacted support to ask for a replacement and they told me that I should go through Bitmain directly. If you are selling this type of technology and you cannot stand behind it with a warranty and replacement strategy for your customers you should not be in this business. Stay away from buying miners from this vendor. Buy from vendors at Amazon instead: at least they offer replacement warranty.
By Michelangelo S.
Response from Altair Technology LLC· Jun 8, 2026
We’re sorry to hear about the issues you experienced with your S19K Pro. We do want to clarify that Bitmain miners include a manufacturer warranty handled directly through Bitmain, which is standard practice across the ASIC mining industry. Because of this, warranty repairs and replacements are processed through Bitmain rather than through us directly. When you contacted us, our support team offered to help troubleshoot the issue and requested the miner’s full log file so we could better diagnose the rebooting problem. Unfortunately, the requested logs were never provided, and the troubleshooting assistance we offered was declined. Without those diagnostics, there was very little we could do to accurately identify the cause of the issue. We also provided guidance on the proper Bitmain warranty process so the issue could be addressed as quickly as possible. Bitmain does have authorized repair centers located within the United States, which helps avoid the need for customers to ship miners overseas for service. While we understand this may not have been the experience you expected, we were following Bitmains warranty procedure, which is used throughout the ASIC mining industry. We always strive to assist our customers with troubleshooting, setup support, and warranty guidance wherever possible. We really appreciate your feedback & wish you the best in getting the issue resolved. Altair Technology
Fantastic customer services and parts for Nano 3s that are hard to find anywhere else! They are becoming my go to crypto mining equipment store. Highly recommend.
By Adam O.
Response from Altair Technology LLC· May 26, 2026
Thank you for the fantastic feedback! We work hard to stock hard-to-find Nano 3S parts and provide responsive customer support. We truly appreciate your recommendation and continued support. Kris K Altair Technology
Always good !
By Bc
Response from Altair Technology LLC· May 26, 2026
Thank you so much for your continued support! We’re glad we can consistently provide a great experience. Altair Technology
I can't say enough about my positive experiences with a great American based company! They are ALWAYS responsive to questions, shipping is fast, and their support is top notch. I will certainly be doing business with them again in the future!
By Chad S.
Response from Altair Technology LLC· May 26, 2026
Thank you for the fantastic feedback! Providing responsive support, fast shipping, and a reliable experience is always our goal. We truly appreciate your continued business and are grateful for your support. Altair Technology
Ordering is simple! Shipping is fast!
By Kyle
Response from Altair Technology LLC· May 19, 2026
Thank you for your feedback! We work hard to make ordering easy and shipping fast. We appreciate you choosing us. Altair Technology
Great customer service and payment options. Highly reccommended US based company
By John Cibrone J.
Response from Altair Technology LLC· May 19, 2026
Thank you for your feedback! We’re proud to be a U.S.-based company offering helpful support and flexible payment options. We appreciate your trust. Altair Technology
Good communication and prompt service
By Ken H.
Response from Altair Technology LLC· May 19, 2026
Thank you for the great review! We’re glad you were happy with the communication and prompt service. We truly appreciate your support! Altair Technology
