on internet i found Cryptominerbros.com listed on
Cryptocompare :
https://www.cryptocompare.com/mining/miner-bros/Asicminervalue :
https://www.asicminervalue.com/vendorsWhattomine :
https://whattomine.com/miners/139-innosilicon-a11-pro-8gb-2000mh?cost=0.1Coinwarz :
https://www.coinwarz.com/mining/bitcoin/calculatorFound this tweet they partner with Redpandamining on youtube :
https://twitter.com/CryptoMinerbros/status/1281224909524316160They Partned with RedPandaMining channel on youtube :
https://www.youtube.com/c/RedPandaMiningThey send many Asic to Redpandamining as per thier channel partner and RedPandamining is tracking all Asics Video and each time meantioned them also :
https://youtu.be/2WoeBRK5voo Here is Registration Details of thier Domain
Domain Name: cryptominerbros.com
Registry Domain ID: 2211135152_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2020-01-03T05:32:02Z
Creation Date: 2018-01-10T07:06:55Z
Registrar Registration Expiration Date: 2022-01-10T07:06:55Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: @godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited http://www.icann.org/epp#clientUpdateProhibited
Domain Status: clientRenewProhibited http://www.icann.org/epp#clientRenewProhibited
Domain Status: clientDeleteProhibited http://www.icann.org/epp#clientDeleteProhibited
Registrant Organization: Miner Bros Limited
Registrant State/Province: Not Applicable
Registrant Country: HK
Registrant Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cryptominerbros.com
Tech Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cryptominerbros.com
Admin Email: Select Contact Domain Holder link at https://www.godaddy.com/whois/results.aspx?domain=cryptominerbros.com
Name Server: ALEC.NS.CLOUDFLARE.COM
Name Server: VIOLET.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-03-04T19:18:37Z <<<
They have many footprints on internet and also many website listed them especially coinwarz and asicminervalue.
[Edit] it's better preferred to Buy From Directly Manufacturer First.