We don't set MOQ for new customer. this is a chance to test our quality and service also

How can I place the order?

First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.

Water Cooling Machine Antspace HK3 for S19 S21 Hyd Hydro-Cooling Computer Server Exchanger Machine

Name: Water Cooling Machine Antspace HK3 for S19 S21 Hyd Hydro-Cooling Computer Server Exchanger Machine
Brand: Shenzhen Letine Technology Co., Ltd.
SKU: 2107215455

Guangdong, ChinaShenzhen Letine Technology Co., Ltd.

US$7,999.00-8,999.00

1 Piece

Product profile

Customization

Available

Graphics Card

Water Cooling Mining Container

Video Memory Capacity

≥2GB

Model NO.

HK3

Interface Type

PCI Express 3.0 16X

Video Memory Type

Gddr 6

Output Type

VGA

Memory Bus

192 Bit

Bus Standard

PCI-E 16X

Heat Dispatch Method

Fan HeatSink

3D API

DirectX 10.1

Model

S21

Hydro

Water Cooling

S21 Hyd

335t

Newest Model

S21

Transport Package

Package Per Box

Specification

195 x 290 x 370mm

Trademark

Bitmain

Origin

China

HS Code

8471504090

Production Capacity

1000

Key features

Comprehensive Warranty Coverage: Warranty period ranges from 180 to 360 days with factory support.

Flexible Customization Options: Supports flexible, minor, full customization, and design-based customization.

Multiple Payment Methods: Accepts Bitcoin, USDT, T/T, MoneyGram, Credit Card, Western Union, and Cash.

Fast Shipping for New Units: New machines ship within 2-3 days after payment; transit takes 7-10 days.

No MOQ for New Customers: No minimum order quantity set for new customers to test quality and service.

Global Shipping Partners: Ships via UPS, DHL, FedEx, EMS, TNT, or custom shipping agents.

Company profile

Low MOQCustomization from SamplesODM ServicesOEM Services

Shenzhen Letine Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 years CertifiedNearest Port: Shenzhen Yantian PortAverage Response Time: ≤5.17h

AI-Powered supplier vetting

SummaryShenzhen Letine Technology Co., Ltd. is a China-based limited company established in 2006, with 78 employees and business activities covering computer hardware, software, peripherals, digital products, artificial intelligence hardware/software, wearable devices, and import/export. The supplier reports strong customization options, OEM service for popular brands, SDK availability, inventory capability, quality assurance, documented complaint and corrective-action procedures, and 19 years of export experience. It also states that 90% of sales are exports and that it has participated in the 2025 ISE-Spain trade show. However, no valid manufacturing-capacity contract exists with its factory or related subcontractors, and it lacks overseas warehouses, showrooms, agents, or branches. The supplied information does not provide verifiable certifications, detailed customer cases, or sufficient financial-performance evidence.

Supplier typeThe supplier is identified as a combined company and a limited company, Shenzhen Letine Technology Co., Ltd., operating from Guangdong, China. Its stated scope includes computer hardware, software, peripherals, digital products, AI-related products, wearable devices, and import/export activities, indicating a technology supplier with both trading and manufacturing-related activities.

After-Sales capabilityThe supplier states that it has fast and professional after-sales capabilities, with a sales team available online 24 hours. It also reports clear procedures and followed records for handling customer complaints and corrective and preventive actions, providing explicit evidence of an established service process.

R&D capabilityThe supplier reports R&D capability with an available SDK and business activities involving AI application software development, AI hardware sales, wearable smart-device manufacturing, and sales. These details support relevant technical and product-development capability, although no specific patents, R&D team size, or developed products are provided.

Customization capabilityThe supplier explicitly offers flexible, minor, and full customization, including customization from customer designs and samples. This directly indicates broad customization options across different starting inputs and project scopes.

Product Q&A

Q:How about the Warranty?

180 days to 360 days

Q:Who could provide the Warranty Service?

If it is within the warranty period, the original factory of the miners will be responsible for it. If it is out of warranty, we will provide paid maintenance service.

Q:How about the payment?

We mainly support Bitcoin, USDT,T/T bank transfer, MoneyGram, Credit Card, Western Union, Cash.

Q:What is your shipping methods?

We use UPS, DHL, FedEx, EMS, TNT or the shipping agent as your request.

Q:How long is the product can come to us?

New machine,After payment,we will shipg out within 2-3 days. used machine after farm send to us we will need to test one by one,if no problem will send out.if have problem will need to repair. After ship out usually arround 7-10 days can arrived.