What’s the difference between DDR4 and other types of memory and can I use them interchangeably?

No, DDR4 memory is not compatible or interchangeable with other types such as DDR5, DDR3, and so on. Each memory type uses different slot designs, voltages, and architectures, so your system must support the memory type specifically.

What’s the difference between DIMM and SO-DIMM memory?

DIMM and SO-DIMM represent two different physical sizes of memory. DIMM is the larger type used in standard desktop computers. SO-DIMM is the smaller type used in laptops, mini PCs, and compact systems. They are not interchangeable.

What does "Non-ECC" mean and do I need "ECC" memory instead?

Non-ECC (non-error correcting) memory is required for most laptops and desktops. ECC is typically only used in servers or workstations and is not interchangeable with Non-ECC memory. If your system doesn’t mention ECC support, you need Non-ECC.

How do I know which speed to choose?

Each system has its own max supported speed. If the memory is faster than your system allows, it will automatically downclock to that max speed, meaning it's safe to buy faster memory. To confirm the max supported speed, refer to your system's manual

Is this compatible with my system or computer?

Refer to your system's manual to confirm the supported memory type, capacity, form factor, and ECC support. If you're unsure, contact our support team, we're happy to help you find the exact memory your system needs!

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

A-Tech 8GB RAM Replacement for Hynix HMA81GU6AFR8N-UH | DDR4 2400MHz PC4-19200 1Rx8 1.2V UDIMM Non-ECC 288-Pin DIMM Memory Module

A-Tech 8GB RAM Replacement for Hynix HMA81GU6AFR8N-UH | DDR4 2400MHz PC4-19200 1Rx8 1.2V UDIMM Non-ECC 288-Pin DIMM Memory Module

Product ID: 137164600

Details

Brand
A-Tech
Compatible Devices
Desktop
Computer Memory Size
8 GB
Memory Speed
2400 MHz
RAM Memory Technology
DDR4

⚡2400MHz blazing speed

🔋1.2V ultra-efficient power

🧩288-pin seamless fit

R2153

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

⚡ Upgrade your desktop’s brainpower—because speed waits for no one!

RELIABLE 8 GB CAPACITY - Boost your system’s responsiveness and handle demanding applications with ease.
BLAZING DDR 4 2400 M HZ SPEED - Experience lightning-fast multitasking and smooth performance that keeps you ahead of the curve.
BACKED BY LIMITED LIFETIME WARRANTY - Invest with confidence—A-Tech guarantees durability and quality for the long haul.
PERFECT 288 PIN UDIMM COMPATIBILITY - Plug-and-play replacement designed to fit your Hynix HMA81GU6AFR8N-UH slot flawlessly.
ULTRA EFFICIENT 1 2 V POWER CONSUMPTION - Save energy without compromising on power—optimized for modern desktops and eco-conscious pros.

The A-Tech 8GB DDR4 2400MHz RAM module is a high-performance, energy-efficient memory upgrade designed as a direct replacement for Hynix HMA81GU6AFR8N-UH. Featuring a 288-pin UDIMM form factor and operating at a low 1.2V voltage, it ensures seamless compatibility and reliable multitasking for desktop users. With a strong customer rating and a limited lifetime warranty, this module is a smart choice for professionals seeking to enhance their system’s speed and efficiency.

Specifications

ASIN	B07SW7W5C8
Additional Features	Lightweight
Best Sellers Rank	#3,768 in Computer Memory
Brand	A-Tech
Column Address Strobe Latency	17
Compatible Devices	Desktop
Customer Reviews	4.8 4.8 out of 5 stars (13)
Data Transfer Rate	19200 megabytes_per_second
Form Factor	DIMM
Manufacturer	A-Tech Components
Memory Form Factor	UDIMM
Memory Generation	DDR4
Memory Speed	2400 MHz
Mfr Part Number	HMA81GU6AFR8N-UH-ATC
Model Name	Trident Z5
Model Number	HMA81GU6AFR8N-UH-ATC
Number of Items	1
Number of Pins	288
RAM Memory Technology	DDR4
RAM Size	8 GB
Voltage	1.2 volts
Warranty Description	Limited Lifetime Warranty Covering Defects In Materials And Workmanship

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R2153

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews