--- product_id: 468391775 title: "- 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules" brand: "a-tech" price: "$3527.01" currency: USD in_stock: true reviews_count: 9 category: "A Tech" url: https://www.desertcart.us/products/468391775-128gb-kit-4x32gb-ddr5-4800mhz-pc5-38400-cl40-udimm-2rx8 store_origin: US region: United States of America --- # 4800MHz blazing speed 128GB total capacity 1.1V low power efficiency - 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules **Brand:** a-tech **Price:** $3527.01 **Availability:** ✅ In Stock ## Summary > 🚀 Upgrade to A-Tech DDR5: Power, speed, and reliability that your future self will thank you for! ## Quick Answers - **What is this?** - 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules by a-tech - **How much does it cost?** $3527.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/468391775-128gb-kit-4x32gb-ddr5-4800mhz-pc5-38400-cl40-udimm-2rx8) ## Best For - a-tech enthusiasts ## Why This Product - Trusted a-tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Massive 128GB Capacity:** Future-proof your desktop with a powerhouse memory kit designed for multitasking and heavy workloads. - • **Plug & Play Simplicity:** Upgrade your rig in minutes with easy installation—no tech expertise required to join the elite. - • **Rock-Solid Reliability:** Backed by rigorous testing and a Limited Lifetime Warranty, plus top-tier support to keep you ahead. - • **Blazing DDR5 4800MHz Speed:** Experience ultra-fast data transfer that crushes bottlenecks and accelerates your workflow. - • **Energy-Smart 1.1V Operation:** Cut down on power consumption without sacrificing performance—optimized for modern systems. ## Overview The A-Tech 128GB DDR5 4800MHz RAM Kit (4x32GB) is a high-performance desktop memory upgrade featuring ultra-fast PC5-38400 speeds, low 1.1V power consumption, and dual-rank 2Rx8 architecture. Designed for seamless compatibility with select DDR5 desktops and workstations, this Non-ECC unbuffered DIMM ensures enhanced system responsiveness and multitasking efficiency. Easy to install and backed by a Limited Lifetime Warranty, it’s the smart choice for professionals demanding reliable, future-ready memory. ## Description Product description Specifications What’s the difference between DDR5 and other types of memory and can I use them interchangeably? No, DDR5 memory is not compatible or interchangeable with other types such as DDR4, 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 DDR5 and other types of memory and can I use them interchangeably? No, DDR5 memory is not compatible or interchangeable with other types such as DDR4, 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’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. 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 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! 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! Review: Works Perfectly in Dell EBT2250 - The Dell EBT2250 is notoriously finicky about what memory is going to work with it. At the time I purchased this memory A-Tech didn’t have anything that was specifically guaranteed to do so. The specs are correct and when I contacted them to confirm compatibility they said that it would work. It did! Besides the cosmetic differences, these modules look identical to what came installed in my EBT2250. The components and their placement was the same, and the memory chips themselves were the same. I wanted a matched pair of sticks, however, so I purchased this kit. The modules I received don’t look like the pictures here on desertcart, they’re flat black with a crosshatch pattern. It doesn’t really matter, but they look pretty slick! They appear to be at least as well constructed as the OEM module. They seated perfectly when installed in the memory slots. Once installed, on initial boot, the system didn’t recognize them properly, but once rebooted from the BIOS they were identified correctly and the system booted up without incident (I believe that the “safe BIOS” feature of this computer may have had something to do with that.) When tested (several times) there were no issues. Maximum memory speed and performance was confirmed; all is working exactly as well as expected. Since I purchased this A-Tech memory kit, they’ve listed a set specifically for the EBT2250. I’ve compared the specs and that set appears to be identical to this one, but costs significantly more (perhaps there’s value in the peace of mind that affirmation imparts?) I can confirm that this memory does in fact work properly. So if you’ll take my word for it, this kit can save you some significant money with absolutely no downside! This isn’t my first experience with A-Tech memory and I’ve yet to be disappointed. So far, so good. UPDATE (4/16/26): I’ve been experiencing a very rare, but somewhat concerning problem where large file transfers and searches are stalling mid process. I suspected memory issues, amongst other things. Ran 8 full passes of MemTest86 (about 10 hours nonstop!) and this memory passed with flying colors. Not a single error or ecc correction, rock solid! Several days of research and changing EBT2250 Win11 system settings later, it turns out that its very aggressive power management settings were the cause. Shut pretty much all of that “stuff” down and it’s purring like a kitten now. The RAM had absolutely nothing to do with the problem! I stand by my opinion about this company and their memory quality! Review: Dell Precision 3680 - Worked perfectly with Dell Precision 3680. I specifically wanted to leave a review so people know it works for that computer because although all info online said it should work you never know. Only thing is I wish I would have bought 64gb but prices are insane. Plug and play no issues and upgraded ram in 5 min. Thank you! ## Features - A-Tech RAM Memory compatible for select DDR5 Desktop and Workstation PC/Computers - 128GB RAM Kit (4 x 32GB Modules); DDR5 DIMM 288 Pin; Speeds up to 4800MHz PC5-38400 (PC5-4800B) - NON-ECC Unbuffered (UDIMM); 2Rx8 - Dual Rank x8; JEDEC DDR5 standard 1.1V - Improves system speed, performance, and reduces bottlenecks by increasing memory RAM resources - Quick and easy to install, no expertise required - Each A-Tech memory module is built and tested for superior performance and trusted reliability - All A-Tech products are covered with a Limited Lifetime Warranty and are backed by our top rated support team to help guide you every step of the way ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B17SWJN5 | | Additional Features | Non-ECC Unbuffered, On-die ECC | | Best Sellers Rank | #79 in Computer Memory | | Brand | A-Tech | | Column Address Strobe Latency | CL40 | | Compatible Devices | Desktop | | Computer Memory Size | 128 GB | | Customer Reviews | 4.4 out of 5 stars 137 Reviews | | Data Transfer Rate | 38400 Megabytes Per Second | | Form Factor | DIMM | | Item Type Name | computer-internal-memory | | Item Weight | 3 Ounces | | Manufacturer | A-Tech | | Memory Form Factor | UDIMM | | Memory Generation | DDR5 | | Memory Speed | 4800 MHz | | Mfr Part Number | AT32G4D5D4800ND8N11V | | Model Name | A-Tech 128GB Kit (4x32GB) | | Model Number | AT32G4D5D4800ND8N11V | | Number of Pins | 288 | | RAM Memory Technology | DDR5 | | RAM Size | 128 GB | | Special Feature | Non-ECC Unbuffered , On-die ECC | | Voltage | 1.1 Volts | | Warranty Description | Limited Lifetime Warranty covering defects in materials and workmanship | ## Product Details - **Brand:** A-Tech - **Compatible Devices:** Desktop - **Computer Memory Size:** 128 GB - **Memory Speed:** 4800 MHz - **RAM Memory Technology:** DDR5 ## Images ![- 128GB Kit (4x32GB) DDR5 4800MHz PC5-38400 CL40 UDIMM 2Rx8 Dual Rank 1.1V Non-ECC Unbuffered DIMM 288-Pin Desktop PC/Computer RAM Memory Upgrade Modules - Image 1](https://m.media-amazon.com/images/I/81DVCXWMNRL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: What’s the difference between DDR5 and other types of memory and can I use them interchangeably?** A: No, DDR5 memory is not compatible or interchangeable with other types such as DDR4, DDR3, and so on. Each memory type uses different slot designs, voltages, and architectures, so your system must support the memory type specifically. **Q: What’s the difference between DIMM and SO-DIMM memory?** A: 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. **Q: What does "Non-ECC" mean and do I need "ECC" memory instead?** A: 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. **Q: How do I know which speed to choose?** A: 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 **Q: Is this compatible with my system or computer?** A: 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! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Perfectly in Dell EBT2250 *by S***E on September 3, 2025* The Dell EBT2250 is notoriously finicky about what memory is going to work with it. At the time I purchased this memory A-Tech didn’t have anything that was specifically guaranteed to do so. The specs are correct and when I contacted them to confirm compatibility they said that it would work. It did! Besides the cosmetic differences, these modules look identical to what came installed in my EBT2250. The components and their placement was the same, and the memory chips themselves were the same. I wanted a matched pair of sticks, however, so I purchased this kit. The modules I received don’t look like the pictures here on Amazon, they’re flat black with a crosshatch pattern. It doesn’t really matter, but they look pretty slick! They appear to be at least as well constructed as the OEM module. They seated perfectly when installed in the memory slots. Once installed, on initial boot, the system didn’t recognize them properly, but once rebooted from the BIOS they were identified correctly and the system booted up without incident (I believe that the “safe BIOS” feature of this computer may have had something to do with that.) When tested (several times) there were no issues. Maximum memory speed and performance was confirmed; all is working exactly as well as expected. Since I purchased this A-Tech memory kit, they’ve listed a set specifically for the EBT2250. I’ve compared the specs and that set appears to be identical to this one, but costs significantly more (perhaps there’s value in the peace of mind that affirmation imparts?) I can confirm that this memory does in fact work properly. So if you’ll take my word for it, this kit can save you some significant money with absolutely no downside! This isn’t my first experience with A-Tech memory and I’ve yet to be disappointed. So far, so good. UPDATE (4/16/26): I’ve been experiencing a very rare, but somewhat concerning problem where large file transfers and searches are stalling mid process. I suspected memory issues, amongst other things. Ran 8 full passes of MemTest86 (about 10 hours nonstop!) and this memory passed with flying colors. Not a single error or ecc correction, rock solid! Several days of research and changing EBT2250 Win11 system settings later, it turns out that its very aggressive power management settings were the cause. Shut pretty much all of that “stuff” down and it’s purring like a kitten now. The RAM had absolutely nothing to do with the problem! I stand by my opinion about this company and their memory quality! ### ⭐⭐⭐⭐⭐ Dell Precision 3680 *by T***. on April 14, 2026* Worked perfectly with Dell Precision 3680. I specifically wanted to leave a review so people know it works for that computer because although all info online said it should work you never know. Only thing is I wish I would have bought 64gb but prices are insane. Plug and play no issues and upgraded ram in 5 min. Thank you! ### ⭐⭐⭐⭐⭐ Great for testing my 128GB worth of faulty ram *by T***. on August 18, 2024* I have issue with my workstation computer and I have been diagnosed it by putting in a new CPU, spare low end GPU, and even a New Motherboard but my PC is still not working. And since the ram I put in my pc is the only DDR5 RAM stick I have I have to buy another stick of ram but do not wants to buy expensive DDR5 just for testing. This DDR5 RAM is affordable enough to replace the whole 128GB to test and find out that all of my 4 stick of ram is faulty. I will keep this Ram just in case I have to test more pc for a faulty DDR5 RAM. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/468391775-128gb-kit-4x32gb-ddr5-4800mhz-pc5-38400-cl40-udimm-2rx8](https://www.desertcart.us/products/468391775-128gb-kit-4x32gb-ddr5-4800mhz-pc5-38400-cl40-udimm-2rx8) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-15*