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Professional Blockchain Mining Hardware

Factory-direct GPU mining rigs, motherboards, power supplies, and complete mining systems from Chengdu, China. Trusted by miners in Russia, Kazakhstan, Kyrgyzstan, and Belarus.

Mining Rig

About Topminer

China Hongcheng Yujin (Chengdu) International Trade Co., Ltd. is a leading manufacturer specializing in blockchain miners and computer hardware products. With over 3,000 square meters of production space and a 1,200 square meter office, we deliver top-quality mining solutions to clients worldwide.

Our industrial chain ensures consistent quality, backed by CE, ISO9001, and ISO13485 certifications. We offer intimate after-sales service and have rich experience in foreign trade export, especially to CIS countries.

View Our Products
Mining Facility Mining Rig Assembly Motherboard Production Quality Testing

Why Choose Topminer?

3,000+ m² Facility

Large-scale production and warehouse space ensures fast delivery and high-volume orders.

Certified Quality

CE, ISO9001, and ISO13485 certified for consistent, reliable, and safe mining hardware.

Intimate After-Sales

Dedicated support team ready to assist with technical issues, replacements, and logistics.

Global Export Experience

Proven track record shipping to Russia, Kazakhstan, Kyrgyzstan, Belarus, and beyond via CDEK.

Featured Products

65mm Pitch 8GPU Mining Rig

65mm Pitch 8GPU Mining Rig

The most popular barebone miner with optimal card spacing for cooling and performance.

  • • 8 GPU support
  • • 65mm card pitch
  • • Low noise design
  • • Heavy-duty chassis
55mm Pitch ETH Miner

55mm Pitch 8-Card ETH Miner

Most cost-effective Ethereum mining chassis with front interface access.

  • • 8 GPU support
  • • 55mm pitch
  • • Front I/O panel
  • • Factory direct price
70mm Quiet Miner Chassis

70mm Quiet Miner Chassis

Ultra-quiet mining rig with wide 70mm spacing for superior airflow.

  • • 8 GPU support
  • • 70mm card spacing
  • • Low noise fans
  • • Reinforced frame
IDC 4U6 Card Chassis

IDC 4U6 Card Mining Chassis

High-quality 50mm pitch miner for data center and industrial use.

  • • 6 GPU support
  • • 50mm pitch
  • • 4U rack mountable
  • • Industrial-grade build
RX588 GPU Miner

RX588 GPU Miner (240MH/s)

High-performance mining card with 240MH/s hashrate for Ethereum.

  • • 240MH/s hashrate
  • • Low power consumption
  • • Stable performance
  • • Factory tested
B85 Mining Motherboard

B85 Mining Motherboard

Dedicated 65mm pitch GPU miner motherboard with integrated B85 chip.

  • • Supports 8 GPUs
  • • B85 chipset
  • • Thickened electrolytic board
  • • Plug-and-play ETH mining
1600W Power Supply

1600W Mining Power Supply

High-efficiency PSU designed for multi-GPU mining rigs.

  • • 1600W output
  • • 80+ Bronze certified
  • • Multiple PCIe connectors
  • • Overload protection
Mini PC for Mining

Mini PC for Work & Entertainment

Compact Intel Core-based PC ideal for office or mining control.

  • • Intel Core processor
  • • Portable design
  • • Low power usage
  • • Silent operation

Key Features

High Efficiency

Our mining rigs are optimized for maximum hashrate with minimal power draw, ensuring profitability.

Durable Build

Thickened electrolytic boards and reinforced chassis ensure long-term reliability in harsh environments.

Global Shipping

We ship worldwide, with fast delivery to Russia, Kazakhstan, Kyrgyzstan, and Belarus via CDEK.

3000+
Square Meters Facility
8
GPU Support Max
240
MH/s Max Hashrate
1600
Watts Power Supply

Frequently Asked Questions

Do you ship internationally?

Yes, we ship globally. We have reliable logistics partners and regularly ship to Russia, Kazakhstan, Kyrgyzstan, and Belarus via CDEK. Delivery typically takes 3-4 weeks.

Are your products certified?

Yes, we hold CE, ISO9001, and ISO13485 certifications, ensuring our mining hardware meets international quality and safety standards.

What payment methods do you accept?

We accept bank transfers (T/T), Alibaba Trade Assurance, and other secure payment methods. Contact us for details.

Do you offer after-sales support?

Yes, we provide intimate after-sales service including technical support, warranty claims, and replacement parts.

Get in Touch

Have questions about our mining hardware? Reach out to our team for quotes, technical details, or shipping information.

Contact Information

Company: China Hongcheng Yujin (Chengdu) International Trade Co., Ltd.

Address: No. 1301, 13th Floor, Building 17, No. 1, Guanghua North 6th Road, Qingyang District, Chengdu

Phone: +86-13018277227

Email: langchenguoji@aliyun.com

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