Best Cl7 Memory in 2026
Daisy
Last Updated: Jul 17, 2026
Daisy
Last Updated: Jul 17, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Platinum Micro, Inc. | 9.73 | ✅ | ✅ | ✅ |
Improve your system's responsiveness, run apps faster and multitask with ease
Install with ease; no computer skills required How-to guides available at Crucial
Compatibility assurance when using the Crucial System Scanner or Crucial Advisor Tool
Micron quality and reliability is backed by superior component and module level testing and 42 years of memory expertise
ECC Type = Non-ECC, Form Factor = SODIMM, Pin Count = 260-pin, PC Speed = PC4-21300, Voltage = 1.2V, Rank and Configuration = 1Rx16, 1Rx8 or 2Rx8
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ✅ | ✅ | ✅ |
DDR4 2666MHz PC4-21300 260 Pin Unbuffered Non-ECC 1.2V CL19 Single Rank 1Rx8 based 1024x8
Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V)
Module Size: 8GB Package: 1x8GB For Laptop, Not For Desktop
For Selected DDR4 Laptop / Notebook PC, Mini PC, All in one Device
Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
A-Tech Memory (RAM) upgrade compatible for select Laptop, Notebook, and All-in-One (AIO) computers
Single 8 GB Module; DDR4 SO-DIMM 260-Pin; Speeds up to 2666/2667-MHz, PC4-21300 (PC4-2666V)
NON-ECC Unbuffered; 1Rx8 or 2Rx8 (Single or Dual Rank); JEDEC DDR4 standard 1.2V
Expands your system's available Memory RAM resource, improving performance, speed and allowing you to take on more while maintaining a smooth experience
Quick and easy to install, no expertise required (Please refer to your system's manual for seating and channel guidelines)
All A-Tech memory modules undergo stringent quality control testing to ensure dependable and reliable performance
Backed by A-Tech's Limited Lifetime Warranty and supported by our knowledgeable Tech Team available to help before and after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Experience of benefits of a PC memory upgrade with the ability to run more demanding applications simultaneously and at faster speeds for a better smoother computing experience
High Performance DDR4 laptop memory designed for PC enthusiasts and gamers
Exceptional performance with a frequency Speed of 2666MHz (PC4-21300) and backwards compatible with lower frequencies (2400MHz and 2133MHz)
Cas latency of 19, 12 Volts
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| i77e | 7.57 | ❌ | ❌ | ❌ |
Dual Module with 8GB capacity per stick at 2666MHz
288-pin Dim with gold contact fingers
CL19 1.2V unbuffered
Kingston ValueRAM 16GB
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TEAMGROUP Inc. | 9.93 | ✅ | ✅ | ✅ |
Adherence to JEDEC and compliance to RoHS with respect to environmental protection regulation, production and manufacturing
All new generation product of DRAM module. Strict test and verification procedures are performed for products
Lifetime warranty and Free technical support
Installation video is attached in product image
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BIWIN Tech | 9.94 | ✅ | ✅ | ✅ |
High cost performance without the need of repeated comparisons: The new-generation DDR4 memory has 4G, 8G, and 16G capacity, respectively, with the main frequency being 2400mhz and 2666MHz
Quality particles passed rigorous tests: Complies with JEDEC standards, features optimal memory particles, and passed rigorous testing, to ensure the quality of components.
Wide compatibility: Passed the motherboard compatibility test of major laptop computer brands and is compatible with laptop motherboards and systems that support DDR4
Energy conservation and environmental protection, adapting to high-intensity work: Operate under 1.2V low voltage, with high efficiency and low power consumption, ensuring stable performance
World-Class Quality & Support: 5 Years Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ✅ | ✅ | ✅ |
Compatible For Mid 2020 iMac w/ Retina 5K Display model ID: iMac 20,1 / iMac 20,2 (i5 3.1GHz, i5 3.3GHz, i7 3.8GHz, i9 3.6GHz)
Compatible For Early 2019 iMac w/ Retina 5K Display model ID: iMac 19,1 (i5 3.0GHz, i5 3.1GHz, i5 3.7GHz, i9 3.6GHz)
Compatible For Late 2018 Mac Mini model ID: Mac Mini 8,1 (i3 3.6GHz, i5 3.0GHz, i7 3.2GHz)
DDR4 2666MHz / 2667MHz PC4-21300/ PC4-21333 Unbuffered NonParity Non-ECC 260 Pin 1.2V CL19 Dual Rank 2Rx8 based 1024x8 Module Size: 32GB Package: 2x16GB
Special Installation Guide for iMac 2020 and wait 30 seconds for your iMac to recognize the new memory; Guaranteed – Lifetime warranty from Purchase Date Free technical support
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
High cost performance without the need of repeated comparisons: The new-generation DDR4 memory has 4G, 8G, and 16G capacity, respectively, with the main frequency being 2400mhz and 2666MHz
Quality particles passed rigorous tests: Complies with JEDEC standards, features optimal memory particles, and passed rigorous testing, to ensure the quality of components.
Wide compatibility: Passed the motherboard compatibility test of major laptop computer brands and is compatible with laptop motherboards and systems that support DDR4
Energy conservation and environmental protection, adapting to high-intensity work: Operate under 1.2V low voltage, with high efficiency and low power consumption, ensuring stable performance
World-Class Quality & Support: 5 Years Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
32GB (2x16GB) DDR4 SODIMM kit for 8th Generation or newer Intel Core i7, and AMD Ryzen 4000 Seires Notebooks
Auto-overclocking with compatible notebooks (no BIOS configuration required)
19-19-19-47 latency
1.2V
2933MHz
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| OLOy Memory | 9.73 | ✅ | ✅ | ✅ |
DDR4 2x8GB UDIMM, total 16 GB
Frequency : 2666 MHz CL19-19-19-43
1.2V UDIMM
Lifetime Warranty
Compatible with Intel and AMD
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ❌ | ❌ | ❌ |
Replacement for Synology D4NESO-2666-4G SODIMM RAM (DDR4 2666MHz PC4-21300 260 Pin Unbuffered Non-ECC 1.2V CL19 Single Rank 1Rx8 based 512x8)
Compatible with 20 series: RS820RP+, RS820+, DS920+, DS720+, DS420+, DS220+
Compatible with 19 series: DS2419+, DS2419+II, DS1819+, DVA3219
Compatible with 18 series: DS1618+
Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ✅ | ✅ | ✅ |
DDR4 2666MHz PC4-21300 288 Pin Unbuffered Non-ECC 1.2V CL19 Single Rank 1Rx8 based 1024x8
Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V)
Module Size:16GB Package: 2x8GB
For Selected DDR4 Desktop; Not for Laptop / Notebook PC, Mini PC, All in one Device
Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ✅ | ✅ | ✅ |
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
16GB RAM Kit ( 2 x 8GB Modules ) | DDR4 DIMM 288-Pin | Speeds up to 2666MHz (2667MHz), PC4-21300 / PC4-2666V
NON-ECC Unbuffered | 1Rx8 or 2Rx8 - Single or Dual Rank | JEDEC DDR4 standard 1.2V
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ✅ | ✅ | ✅ |
Compatible For Mid 2020 iMac w/ Retina 5K Display model ID: iMac 20,1 / iMac 20,2 (i5 3.1GHz, i5 3.3GHz, i7 3.8GHz, i9 3.6GHz)
Compatible For Early 2019 iMac w/ Retina 5K Display model ID: iMac 19,1 (i5 3.0GHz, i5 3.1GHz, i5 3.7GHz, i9 3.6GHz)
Compatible For Late 2018 Mac Mini model ID: Mac Mini 8,1 (i3 3.6GHz, i5 3.0GHz, i7 3.2GHz)
DDR4 2666MHz PC4-21300/ PC4-21333 Unbuffered NonParity Non-ECC 260 Pin 1.2V CL19 Dual Rank 2Rx8 based 1024x8 Module Size: 64GB Package: 2x32GB
Special Installation Guide for iMac 2020 and wait 30 seconds for your iMac to recognize the new memory; Guaranteed – Lifetime warranty from Purchase Date Free technical support
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Timetec International Inc | 9.95 | ✅ | ✅ | ✅ |
DDR4 2666MHz PC4-21300 288 Pin Unbuffered ECC 1.2V CL19 Dual Rank 2Rx8 based 1024x8
Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V)
Module Size: 16GB Package: 2x16GB A must For Server, Not For Desktop/Laptop
Designed For Selected Server Systems
Guaranteed – Lifetime warranty from Purchase Date Free technical support
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| V-color Technology Inc. | 6.07 | ✅ | ✅ | ✅ |
Product Spec: 32GB (2 x 16GB) | DDR4 2666MHz (PC4-21300) | CL19 | ECC SO-DIMM | 1.2V
Especially designed for micro-servers, workstations, networking platforms and embedded systems. Support Synology NAS 21 Series.
100% in house tested undergo rigorous quality control
Strictly audited DRAM chips with top quality 10-layers of PCBs
Limited Lifetime warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Computer Upgrade King | 9.73 | ✅ | ✅ | ✅ |
Laptop Memory Module MTA4ATF51264HZ-2G6E1 Compatible Replacement Spare Part for Micron MTA4ATF51264HZ 4GB 1Rx16 DDR4 SO-DIMM PC4-21300 2666MHz 260-Pin Non-ECC CL19 1.2V
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Aeon Micro, Inc. | 8.09 | ❌ | ❌ | ❌ |
Cut load times. Accelerate demanding applications. And spend less time waiting on your system and more time getting work done. Crucial ECC UDIMMs enable you to maximize the performance capability of your CPUs for a faster, more responsive system
Crucial ECC UDIMMs contain error correction code (ECC). ECC parity helps detect and correct single-bit Memory errors, which can cause sudden shutdowns, file corruption, or data loss. Help prevent costly downtimes with Crucial ECC UDIMMs, which ensure a higher level of data integrity
Crucial ECC UDIMMs are available in DDR to DDR4 memory technology, and select modules are also available in the very low profile (vlp) form factor. Measuring just 18.75mm tall, Crucial vlp ECC UDIMMs are 40% shorter than standard ECC UDIMMs and facilitate better airflow in space-constrained, systems such as micro servers, routers, and switches
Built with new technology tailored for the latest Intel platforms, Crucial DDR4 ECC UDIMMs allow you to increase system performance with memory speeds up to 2666 MT/s and densities up to 16GB. Increasing the installed memory capacity of each server with modules equipped with 8gb-based components enables your systems to reach Their full performance potential
When you make an enterprise-level investment in Crucial products, we believe you deserve a higher level of support. The Reliance Program offers qualified customers up to four additional benefits that affirm our commitment to your servers through service call reimbursements, On-Site spares, 24/7 Technical Support through our direct Hotline, and special bulk shipping options
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ADMT | 7.64 | ✅ | ✅ | ✅ |
128GB ( 4x32GB ) DDR4 2666 MHz Non-Parity/Non-ECC Unbuffered SODIMM Memory 260 pin Dual Rank Module.
Memory Upgrade Compatible with 2020 27 inch iMac w/ Retina 5K Display model ID: 20,1 20,2 (i5 3.1GHz, i5 3.3GHz, i7 3.8GHz, i9 3.6GHz). Models: MXWT2LL/A, MXWU2LL/A, MXWV2LL/A
Memory Upgrade Compatible with Early 2019 27-inch iMac w/ Retina 5K Display model ID: 19,1 (i5 3.0GHz, i5 3.1GHz, i5 3.7GHz, i9 3.6GHz). Models: MRQY2LL/A, MRR02LL/A, MRR12LL/A
Every module is backed by a limited lifetime warranty. We always have hundreds in stock! Free technical support from our experienced technicians.
Every single memory module is fully tested by the manufacturer. Our experienced technicians can verify if these parts will work for you with free technical support.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| nvtek | 9.76 | ✅ | ✅ | ✅ |
Manufacturer: SAMSUNG
Capacity: 32GB
Model: M393A4K40CB2-CTD8Q
Technology: PC4-2666V RDIMM DDR4 ECC PC4-21300
Server Memory
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Moment Semiconductor, Inc. | 9.61 | ✅ | ✅ | ✅ |
Capacity: 8GB Module spec: 288-pin DIMM (For desktop PCs)
Frequency Speed: 3200MHz (PC3-25600) Voltage: 1.2V
Environmental Conditions: Operating Temperature 0°C to 85°
System Compatibility: Windows 7/8.1/10/11 Linux kernel 2.4 and later version Mac OS X 10.8 and later version
Made in Taiwan. Provide 5 year limited warranty and free technique support on our website.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.95 | ❌ | ❌ | ❌ |
Crucial 64GB DDR4 memory bundle including 2 CT32G4RFD4266 RDIMMs.
Compatible with most servers by brands such as Dell, HP, Lenovo, SuperMicro, Synology, IBM, and many more!
Memory Included: 64GB (2 x 32GB) DDR4 PC4-21300 2666MHz Registered Server Memory
CAS Latency: CL19; Pins: 288 Pin
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PMV America | 5.23 | ❌ | ❌ | ❌ |
Memory Size: 32 GB
Memory Technology: DDR4 SDRAM
Memory Voltage: 1.20 V
Number of Modules: 1 x 32GB
Memory Speed: 2666 MHz
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
Form Factor 260PIN SODIMM for For Acer, Alienware , ASUS , Dell , Fujitsu , HP, Lenovo , MSI ,Samsung
Total Capacity 16GB kit (2 x 8GB)
Fast data transfer rates: PC4-3200, PC4-2666, or PC4-2400
Speed 2666 MT/S, Voltage 1.2V
DIMM Type Unbuffered
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PMV America | 5.23 | ❌ | ❌ | ❌ |
Manufacturer: SK HYNIX
Capacity: 8GB
Model: HMA81GR7CJR8N-VK
Technology: PC4-2666V RDIMM DDR4 ECC PC4-21300
Server Memory
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MEMORY n MORE | 5.45 | ❌ | ❌ | ❌ |
Manufacturer: SK HYNIX
Capacity: 16GB
Model: HMA82GR7AFR8N-VK
Technology: PC4-2666V RDIMM DDR4 ECC PC4-21300
Server Memory
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
GET THE High performance：DDR4 2666MHz PC3-21300 SO-DIMM ( 260-Pin ) 8GB / Non-ECC Unbuffered 1.2V CL19/ Dual Rank base on 1Gx8
SIMPLE INSTALLATION: DDR4 Laptop & Notebook & All-in-One Computers and easy install on MSI, Gigabyte, ASRock, Intel platform
SECURED QUALITY：All modules undergo quality testing that ensures performance
COMPATIBILITY: Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
TECHNICAL SUPPORT: MMoment provides 5 year warranty from the date of purchase and strong technical support
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Timetec | 12 |
| A-Tech Components | 9 |
| Crucial | 7 |
| Hp | 3 |
| Corsair | 2 |
| Linkmore | 2 |
| Oloy | 2 |
| Samsung | 2 |
| Sk Hynix | 2 |
| Adamanta | 1 |
We've carried out a comprehensive analysis of 126,061 reviews on memory, using our selection criteria to identify the best options in the computers & accessories. Our findings reveal that most customers typically select memory priced around $70.99, with top brands including corsair, audible, gigastone, amazon basics and sandisk and samsung
Our team of expert editors reviewed these high-quality items and handpicked the top 28 memory for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the computers & accessories category. These include amazon.com, audible, inc. (us) and gigastone america and amazon.com services llc .
We are dedicated to assisting our users in finding the right memory Products based on their needs, saving them considerable time when choosing which memory to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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