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!

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A-Tech 16GB DDR4 2133 MHz UDIMM PC4-17000 (PC4-2133P) CL15 DIMM 2Rx8 Non-ECC Desktop RAM Memory Module

A-Tech 16GB DDR4 2133 MHz UDIMM PC4-17000 (PC4-2133P) CL15 DIMM 2Rx8 Non-ECC Desktop RAM Memory Module

Product ID: 188398482

Details

Brand
A-Tech
Computer Memory Size
16 GB
RAM Memory Technology
DDR4
Memory Speed
2133 MHz
Compatible Devices
Desktop

⚡2133 MHz speed boost

💾16GB high capacity

🔋1.2V low power efficiency

¥31257

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

⚡ Upgrade your desktop’s brainpower — don’t get left behind!

GENEROUS 16 GB CAPACITY - Upgrade your desktop’s memory to handle demanding apps and workflows effortlessly.
BLAZING FAST 2133 M HZ DDR 4 - Experience seamless multitasking and faster load times with industry-standard DDR4 speed.
ENERGY SMART 1 2 V OPERATION - Lower voltage means cooler, more efficient performance that keeps your system stable.
LIFETIME WARRANTY SUPPORT - Buy with confidence backed by A-Tech’s lifetime warranty and expert customer care.
PLUG PLAY UDIMM FORM FACTOR - Easy installation with standard 288-pin DIMM, perfect for most desktop PCs—no tech degree needed.

The A-Tech 16GB DDR4 2133 MHz UDIMM is a high-performance desktop RAM module designed to boost your system’s speed and multitasking capabilities. Featuring a standard 288-pin DIMM form factor and operating at a power-efficient 1.2 volts, it’s compatible with most DDR4 desktop computers. Backed by a lifetime warranty and responsive tech support, this module offers a reliable, easy-to-install memory upgrade for professionals seeking smooth, fast computing.

Specifications

Additional Features	Lightweight
Asin	B07KGMBNQH
Best Sellers Rank	#136 in Computer Memory
Brand	A-Tech
Column Address Strobe Latency	15
Compatible Devices	Desktop, Workstation
Customer Reviews	4.6 4.6 out of 5 stars (102) 4.6 out of 5 stars
Data Transfer Rate	17000 megabytes_per_second
Form Factor	DIMM
Manufacturer	A-Tech Components
Memory Form Factor	UDIMM
Memory Generation	DDR4
Memory Speed	2133 MHz
Mfr Part Number	AT16G1D4D2133ND8N12V
Model Name	A-Tech
Model Number	AT16G1D4D2133ND8N12V
Number Of Items	1
Number Of Pins	288
Ram Memory Technology	DDR4
Ram Size	16 GB
Voltage	1.2 volts
Warranty Description	Limited Lifetime Warranty Covering Defects In Materials And Workmanship

Reviews

User

Excellent Upgrade — Fast, Reliable, and Worth Every Penny

Excellent Upgrade — Fast, Reliable, and Worth Every PennyI picked up the A‑Tech 16GB DDR4 2133 MHz UDIMM (PC4‑17000), and it has been a fantastic upgrade. Installation was quick and effortless, and my system recognized the memory immediately with zero issues. The performance boost was noticeable right away — smoother multitasking, faster load times, and overall better responsiveness.A‑Tech’s build quality feels solid and dependable, and the module has been running cool and stable since day one. For anyone looking to breathe new life into an older desktop or simply expand their RAM without breaking the bank, this is an outstanding choice. Highly recommended for reliability, value, and performance.

24.12.2025

User

Excellent product , used for Alienware Aurora 5 ,

Excellent product , used for Alienware Aurora 5 , not a problem to install , machine runs very fast

21.12.2021

User

Ram may not be as compatible as I thought?

I have two slots for ram on mother board in one slot a gskill 16gb ddr4 2133 pc17000 15-15-15-36 1.2vand I stuck this new ram in and my pc did not want to boot. The gskill ram is fine , Ive used it with a smaller capacity Kingston stick without issues.. After playing witht he bios the atech ram woked when I booted the computer but if I did a restart it would hang...So i dunno if it s bios setting or a bad stick or its just not compatable with my gskill stick... I am unable to get the two sticks to work together reliably without getting hung on restarts.. I dunno if buying another 16gb or atech and pairing them both would work.I give the ram 5 stars cause I am not sure whos fault it is that its not working.. lol.. good ram for the price.

11.02.2021

User

Compatible with the PC, easy to install and a Very good upgrade tô my PC. Good purchase.

I do not use It for gaming.

16.12.2021

User

worked

upgraded from 8GB to this stick of 16GB so that I could game a little bit, as well as multitask. This really improved my ability to do both. No issues at all with the RAM, and shipped on time as promised.

7.06.2021

User

Very fast shipping.

Expected delivery was suppose to be 12-19th of February. Got it surprising the 6th of February.I also know the basics about computers and how they function and what is what. For knowing basics about computers, first time upgrade ram, they where very easy to install.Will update in the future if anything bad happens. So far so good.

7.02.2021

User

A-Tech 16GB DDR4 2133MHz DIMM Installed No Issues

Installed this DIMM a few months ago and it has been working perfectly. What else can I say?

19.01.2021

User

Gaming computer

I upgraded a computer for my grandsons birthday. It was easy to install. The computer ran faster. My grandson says its just what he wanted.

6.01.2021

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¥31257

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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