A-Tech 4GB DDR4 2666MHz DIMM PC4-21300 UDIMM Non-ECC 1.2V CL19 288-Pin Desktop Computer RAM Memory Upgrade Module
45% dearer per GB than the average 4GB DDR4 kit we track.
Specification
| Capacity | 4GB |
| Generation | DDR4 |
| Speed | 2666MHz |
| Form factor | DIMM |
| ECC | Non-ECC |
| Buffered | Unbuffered |
| For | Desktop |
| Brand | A-Tech |
| ASIN | B07WJV39NZ |
Price history
Typical price (median) 90-day £20.59 12-month £20.59 12-month low £20.38 All-time low £18.92 (2025-05-26)
Dear for the market Today’s price is 197% above this kit’s typical price for the past year, and it has been cheaper than this for 37% of that year (last on 25 Sep 2025). At £15.31/GB it is dear against the £8.23/GB typical for DDR4 today. Why medians, not averages ›
Cheaper per GB in the same spec
Same generation, capacity and form factor as this kit, ranked by £/GB. See all ›
| £/GB | Price | Capacity | Manufacturer | For | Type | Form Factor | ECC / Buffered | Description | |
|---|---|---|---|---|---|---|---|---|---|
 | £7.50best £/GB | £30.00 | 4GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2133MHz | - | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2400MHz | - | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 2666MHz | - | |
 | £7.50 | £30.00 | 4GB | GLOBAL MEMORY | Desktop | DDR4 | DIMM 3200MHz | - | |
 | £8.02 | £32.07 | 4GB | ADATA | Desktop | DDR4 | DIMM | Unbuffered | |
 | £8.74 | £34.95 | 4GB | Crucial | Desktop | DDR4 | DIMM 3200MHz | - |
About this kit
- 4GB ( 1x 4GB Module ) | DDR4 2666 / 2667 MHz ( PC4-21300 / PC4-2666V ) | DDR4 DIMM ( 288-Pin ) | Non-ECC UDIMM ( Unbuffered DIMM ) | 1.2V - DDR4 Standard Voltage
- High performance Memory RAM upgrade designed for Desktop PC / Computers
- Easy to install and compatible for select (not limited to) Acer, Alienware, ASRock, ASUS, Dell, DFI, Fujitsu, Gateway, Gigabyte, HP, HP Compaq, Intel, Lenovo, LG, MSI, Panasonic, QNAP, Samsung, Sony, Supermicro, Synology & Toshiba Models
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade! Designed for select Desktop Computers compatible with DDR4 2666MHz/2667MHz UDIMM memory (RAM) Memory Specs Memory Size: 4 GB ( 1 x 4 GB Module ) Memory Type: DDR4 Form Factor: DIMM ( 288 Pin ) Speed: DDR4 2666 / 2667 MHz ( PC4-21300 / PC4-2666V ) ECC Type: Non-ECC UDIMM ( Unbuffered DIMM ) Voltage: 1.2V Equivalent to Part Numbers CT4G4DFS6266 CT4G4DFS8266 HMA851U6CJR6N-VK HMA851U6DJR6N-VK KVR26N19S6/4 MTA4ATF51264AZ-2G6 MTA4ATF51264AZ-2G6B1 MTA4ATF51264AZ-2G6E1 MTA4ATF51264AZ-2G6H1 MTA4ATF51264AZ-2G6J1 MTA8ATF51264AZ-2G6 MTA8ATF51264AZ-2G6B1 M378A5143TB2-CTD M378A5244BB0-CTD M378A5244CB0-CTD Ensured Reliability All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards. Lifetime Warranty Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty. US Based Technical Support Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
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