--- product_id: 667462788 title: "A-Tech 4GB DDR2 800MHz UDIMM PC2-6400 CL6 2Rx8 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Module" brand: "a-tech" price: "$165.60" currency: USD in_stock: true reviews_count: 5 url: https://www.desertcart.us/products/667462788-a-tech-4gb-ddr2-800mhz-udimm-pc2-6400-cl6-2rx8 store_origin: US region: United States of America --- # 800MHz blazing speed 4GB DDR2 capacity 1.8V low power efficiency A-Tech 4GB DDR2 800MHz UDIMM PC2-6400 CL6 2Rx8 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Module **Brand:** a-tech **Price:** $165.60 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your desktop’s heartbeat with A-Tech DDR2 RAM — speed meets reliability! ## Quick Answers - **What is this?** A-Tech 4GB DDR2 800MHz UDIMM PC2-6400 CL6 2Rx8 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Module by a-tech - **How much does it cost?** $165.60 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/667462788-a-tech-4gb-ddr2-800mhz-udimm-pc2-6400-cl6-2rx8) ## 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 - • **Blazing 800MHz Speed:** Experience faster load times and smoother performance with PC2-6400 rated memory. - • **Plug & Play Simplicity:** Easy installation with standard 240-pin UDIMM—no tech expertise needed. - • **Lifetime Warranty & Support:** Backed by A-Tech’s lifetime warranty and friendly tech support for peace of mind. - • **Energy-Efficient Performance:** Runs at a low 1.8V voltage to keep your system cool and power consumption minimal. - • **Boost Your Multitasking Power:** 4GB DDR2 RAM module designed to handle your daily workload with ease. ## Overview The A-Tech 4GB DDR2 800MHz UDIMM PC2-6400 RAM module is a reliable, energy-efficient memory upgrade for DDR2-compatible desktops. Featuring a 240-pin unbuffered design, 1.8V low voltage operation, and a fast 800MHz speed, it enhances multitasking and system responsiveness. Backed by a lifetime warranty and expert support, it’s a hassle-free way to boost your PC’s performance. ## Description Full description not available ## Features - Memory RAM Compatible for select DDR2 capable Desktop, PC 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 4GB RAM Module | DDR2 DIMM 240-Pin - Speeds up to 800MHz, PC2-6400 - NON-ECC Unbuffered ( UDIMM ) | 2Rx8 - Dual Rank | JEDEC DDR2 standard 1.8V ## Technical Specifications | Specification | Value | |---------------|-------| | RAM | 4 GB DDR2 | | Memory Speed | 800 MHz | | Brand | A-Tech | | Hardware Platform | PC | | Color | DDR2 800MHz (PC2-6400) | | Computer Memory Type | DDR2 SDRAM | | Voltage | 1.8 Volts | | Manufacturer | A-Tech Components | | ASIN | B084KT58V5 | | Date First Available | February 7, 2020 | ## Product Details - **Brand:** A-Tech - **Computer Memory Size:** 4 GB - **RAM Memory Technology:** DDR2 - **Memory Speed:** 800 MHz - **Compatible Devices:** Desktop ## Images ![A-Tech 4GB DDR2 800MHz UDIMM PC2-6400 CL6 2Rx8 1.8V DIMM Non-ECC Unbuffered Desktop RAM Memory Module - Image 1](https://m.media-amazon.com/images/I/71nA+JUt9zL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Work *by D***N on July 30, 2025* Got 8g for my pc, Dell xps 710 and so far it works and been smooth. Unlike the motoeagles ram sticks which work but than failed later on ### ⭐⭐⭐⭐⭐ Highly compatible DDR2 RAM Modules, can handle both 800 MHz PC-6400 and 667 MHz PC-5300 excellent value! *by J***D on January 31, 2016* This is an excellent product, I got two 4GB kits (4 modules), and all four worked just great, fully compatible with both Intel based computers where they were installed, I feel these memory modules are an excellent value, and revived a pair of 8+ year old computers, one of the computers is an Asrock G31M-GS based system, the other an Elitegroup 945GCT-M/1333 v3.0 with max RAM specs of 4GB (2 GB per slot) DDR2 667 MHz PC-5300, but I took a chance with these RAMs and they adjusted perfectly from 800 MHz down to 667 MHz (not all RAM modules can do this), in other words these modules can handle both 800 MHz PC-6400 and 667 MHz PC-5300. I would definitely like to try A-Tech's other RAM modules like DDR3 in the near future.It must be noted that (at least the ones I got), these RAMs can not handle the 533 MHz PC-4200 standard, this was not a problem for me, but if your motherboard/system is of an older type that can only accept this standard, then these modules won't work for you.Bottom line is that if your system/motherboard can handle 240-pin DIMM (Desktop PC), non ECC, DDR2, PC-6400 (800 MHz) or PC-5300 (667 MHz) RAM, then I would say there is a 99% chance these modules will be compatible with it.Tip, if for example you plan to get 4 GB of RAM,, get a kit (2 modules of 2 GB each), vs getting a single 4 GB stick, when you get a kit (two identical modules) you can benefit from dual channel, that way you can get a full 800 MHz speed vs just 400 MHz from a PC-6400 DDR2 when you use a single or an odd number of RAM sticks. ### ⭐⭐⭐⭐⭐ Great upgrade for older ASUS motherboards! *by V***R on June 10, 2025* Worked great on old ASUS motherboard Pentium dual core, with only 2 memory slots, upgraded from 4 to 8 GB. I'm running Windows 10 with no problems at all. I'm a Very Happy Customer! --- ## 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/667462788-a-tech-4gb-ddr2-800mhz-udimm-pc2-6400-cl6-2rx8](https://www.desertcart.us/products/667462788-a-tech-4gb-ddr2-800mhz-udimm-pc2-6400-cl6-2rx8) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-09*