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

  • Based on 103 reviews
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Availability: 15 left in stock
Fulfilled by Amazon

Arrives Wednesday, Oct 14
Order within 20 hours and 54 minutes
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Size: 16GB


Features

  • Compatible with select DDR4 Desktop computers + Easy to install at home, no expertise required
  • Maximize your system's performance, boost loading speeds and multitask with ease
  • Backed by A-Tech's Lifetime Warranty + Friendly tech support team available to help before and after your purchase
  • Single 16GB RAM Module | DDR4 DIMM 288-Pin | Speeds up to 2133MHz, PC4-17000 / PC4-2133P
  • NON-ECC Unbuffered | 2Rx8 - Dual Rank | JEDEC DDR4 standard 1.2V

Description

DDR4 2133MHz DIMM DDR4 2400MHz DIMM DDR4 2666MHz DIMM DDR4 3200MHz DIMM DDR4 2133MHz SODIMM 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! A-Tech is a leading brand of Computer Memory (RAM) based in the United States. We offer a vast variety of memory products to solve all your memory needs; from servers to desktop PCs to laptops and more! All A-Tech products are rigorously tested to ensure high quality, dependable performance. Upgrade your system with confidence with A-Tech memory (RAM). Memory (RAM) gives applications a place to temporarily store data which allows your computer to quickly access information. Using multiple programs/applications at once or doing resource intensive activities (such as video/photo editing, gaming, programming and more) can slow down your system as each compete for a limited amount of memory resource. A RAM upgrade can improve performance by expanding your system's memory capacity allowing your computer to take on more while maintaining a fast and smooth experience. There are many types of RAM including RD, SD, DDR, DDR2, DDR3, DDR4, and DDR5, with DDR5 being the newest version. All system’s have their own memory requirements and will only support one of those specific types of RAM. For instance, a laptop that requires DDR4 RAM can only support DDR4 RAM. Each type of RAM has different pin sizes and notch locations meaning a DDR3 RAM module will only fit into a DDR3 RAM slot and so on. Refer to your system’s manual to determine the supported RAM specifications Along with RAM types, there are also different Form Factors or physical sizes of RAM. SODIMM (or SO-DIMM) RAM is used in laptops and notebooks and is also commonly used in select All-in-One (AIO) computers, Mini PCs and NAS systems. DIMM RAM is used in Desktops Computers as well as Workstations and Servers. The two sizes are not interchangeable; a DIMM module will not fit into a system that requires SODIMM RAM and a SODIMM module will not fit into a system that requires DIMM RAM. Non-ECC Unbuffered (or simply Non-ECC): Primarily used in Desktop PCs, Laptops, All-in-One (AIO) computers, & Mini PCs as almost all those system types only support Non-ECC Unbuffered memory ECC Registered: Only used in Servers and select Workstations ECC Load Reduced: Only used in Servers and select Workstations ECC Unbuffered: Only used in Servers and Workstations ECC Fully Buffered: Only used in select Servers that support DDR2 RAM Different ECC types cannot be mixed within the same system, only one type can be used.

Brand: A-Tech


Computer Memory Size: 16 GB


RAM Memory Technology: DDR4


Memory Speed: 2133 MHz


Compatible Devices: Desktop, Workstation


RAM Memory Technology: DDR4


Memory Speed: 2133 MHz


Compatible Devices: Desktop, Workstation


Additional Features: Lightweight


Voltage: 1.2 volts


Column Address Strobe Latency: 15


Form Factor: DIMM


Data Transfer Rate: 17000 megabytes_per_second


Number of Pins: 288


Memory Form Factor: UDIMM


Memory Generation: DDR4


RAM Size: 16 GB


Brand: A-Tech


Model Name: A-Tech


Number of Items: 1


Manufacturer: A-Tech Components


Model Number: AT16G1D4D2133ND8N12V


Mfr Part Number: AT16G1D4D2133ND8N12V


Warranty Description: Limited Lifetime Warranty Covering Defects In Materials And Workmanship


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Excellent Upgrade — Fast, Reliable, and Worth Every Penny
Size: 16GB
Excellent Upgrade — Fast, Reliable, and Worth Every Penny I 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. ... show more
Reviewed in the United States on December 24, 2025 by Tommy Garrett

  • Excellent product , used for Alienware Aurora 5 ,
Size: 16GB
Excellent product , used for Alienware Aurora 5 , not a problem to install , machine runs very fast
Reviewed in the United States on December 21, 2021 by Sergio Valdes Solombrino

  • Ram may not be as compatible as I thought?
Size: 16GB
I have two slots for ram on mother board in one slot a gskill 16gb ddr4 2133 pc17000 15-15-15-36 1.2v and 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. ... show more
Reviewed in the United States on February 11, 2021 by buying maniac

  • Compatible with the PC, easy to install and a Very good upgrade tô my PC. Good purchase.
Size: 16GB
I do not use It for gaming.
Reviewed in the United States on December 16, 2021 by Sidney S.

  • worked
Size: 16GB
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.
Reviewed in the United States on June 7, 2021 by A. Piro

  • Very fast shipping.
Size: 16GB
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. ... show more
Reviewed in the United States on February 7, 2021 by Curtsinger

  • A-Tech 16GB DDR4 2133MHz DIMM Installed No Issues
Size: 16GB
Installed this DIMM a few months ago and it has been working perfectly. What else can I say?
Reviewed in the United States on January 19, 2021 by Will

  • Gaming computer
Size: 16GB
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.
Reviewed in the United States on January 6, 2021 by Ginny

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