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Premium RAM Memory Manufacturing & Wholesale

Trusted DDR2, DDR3, DDR4 RAM modules, motherboards, CPUs, SSDs & GPUs from a leading Shenzhen-based manufacturer since 1997. Factory-direct pricing, global shipping, OEM support.

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About Ramjoinwin

Joinwin Industrial Development Limited was founded in 1997 in Hong Kong and specializes in the R&D, production, and global sales of computer memory and electronic components.

In 2012, we established our subsidiary Shenzhen Joinwin Technology Ltd. in Shenzhen, China — a strategic move to strengthen our manufacturing capabilities and supply chain efficiency.

We are a professional manufacturer of PC, Laptop, and Server RAM memory modules, memory cards, motherboards, and other core computing hardware. With over 25 years of industry experience, we serve distributors, resellers, and system integrators worldwide.

Factory Production Line

Why Partner With Ramjoinwin?

Industry Specialists Since 1997

Over two decades of expertise in RAM technology, memory modules, and computer hardware manufacturing. We understand performance, compatibility, and reliability.

Global Export Experience

We know how to export to Brazil and other international markets efficiently, helping clients navigate customs, reduce local taxes, and ensure smooth delivery.

OEM & Custom Branding

Offer your own branded memory modules with custom labels, packaging, and specifications. We are your silent partner in building your brand.

Our Product Range

DDR3 4GB 1600MHz

DDR3 4GB 1600MHz RAM

PC3-12800, 240-pin, desktop memory with ETT chips. High compatibility, stable performance.

Wholesale Pricing | OEM Available

DDR4 8GB 2400MHz

DDR4 8GB 2400MHz RAM

High-speed desktop memory, ideal for modern systems. Low power consumption, high bandwidth.

Factory Direct | Bulk Orders

Laptop DDR3 8GB

Laptop DDR3 8GB 1600MHz

204-pin SO-DIMM, non-ECC, unbuffered. Perfect for system upgrades and OEM integration.

In Stock | Fast Delivery

H61 Motherboard

H61 LGA1155 Motherboard

Mini ITX, supports DDR3, Intel Core i3/i5/i7. Ideal for compact builds and industrial PCs.

Custom Design | OEM Support

DDR2 2GB 800MHz

DDR2 2GB 800MHz RAM

PC2-6400, desktop and laptop versions available. Reliable for legacy systems and upgrades.

Large Stock | Accepts PayPal

X79 LGA2011 Motherboard

X79 LGA2011 Motherboard

Supports high-end Intel Core i7 processors. Ideal for workstations and servers.

Wholesale Price | Bulk Orders

GTX 1060 6GB

GTX 1060 6GB Graphics Card

High-performance GPU for gaming and rendering. Stable clock, excellent thermal design.

Professional Grade | Fast Shipping

Intel Core i7 4790

Intel Core i7-4790 3.6GHz

LGA1150, quad-core, 8MB cache. Powerful CPU for desktops and workstations.

Original | Low Price | In Stock

Server ECC RAM 8GB

ECC Reg 8GB DDR3 Server RAM

PC3L-10600R, 2Rx4, for servers and workstations. Error-correcting, high reliability.

Lifetime Warranty | Bulk Pricing

DDR4 4GB 2133MHz Laptop

DDR4 4GB 2133MHz Laptop RAM

SO-DIMM, 260-pin, low voltage. Upgrade your notebook with reliable memory.

OEM Branding | Factory Price

HDD 1TB

1TB HDD 7200RPM

SATA III interface, high capacity storage for desktops and NAS systems.

Wholesale | Bulk Orders

SSD 240GB

240GB SATA III SSD

Fast boot, silent operation, ideal for system upgrades and OEM integration.

High Reliability | Factory Price

25+
Years in Business
100+
Global Clients
50M+
Modules Shipped
1997
Founded in HK

Frequently Asked Questions

Do you offer OEM/ODM services?

Yes, we provide full OEM and ODM support including custom branding, packaging, and technical specifications.

What payment methods do you accept?

We accept T/T, PayPal, and other secure payment methods. Terms can be discussed based on order volume.

How do you handle international shipping?

We ship globally via DHL, FedEx, and sea freight. We assist with customs documentation and tax optimization.

What is your warranty policy?

Most memory modules come with a lifetime warranty. Motherboards and other components have 1-3 year warranties.

Can I get samples before bulk order?

Yes, sample orders are available for evaluation. Contact us for sample pricing and shipping details.

Get in Touch

Company: Joinwin Industrial Development Limited

Location: Shenzhen, China

Phone: +86-0755-83952193

Mobile: +86 13632905958

Email: jw@pcjoinwin.com

Skype: joinwin1

Address: Room 906, 9/F Bantian Group Commercial Center, No. 20 LiShipai, Bantian Street, Longgang District, Shenzhen, China.

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