---
product_id: 128886076
title: "Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade"
brand: "timetec"
price: "€ 226.27"
currency: EUR
in_stock: true
reviews_count: 12
url: https://www.desertcart.fr/products/128886076-timetec-64gb-kit-4x16gb-compatible-for-apple-ddr4-2666mhz-mid
store_origin: FR
region: France
---

# 2666MHz Speed 64GB RAM Lifetime Warranty Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade

**Brand:** timetec
**Price:** € 226.27
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your iMac Experience!

## Quick Answers

- **What is this?** Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade by timetec
- **How much does it cost?** € 226.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/128886076-timetec-64gb-kit-4x16gb-compatible-for-apple-ddr4-2666mhz-mid)

## Best For

- timetec enthusiasts

## Why This Product

- Trusted timetec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Peace of Mind:** Enjoy a lifetime warranty and free technical support, making your upgrade worry-free.
- • **Easy Installation:** Simply wait 30 seconds for your iMac to recognize the new memory—no tech wizardry required!
- • **Upgrade Your iMac:** Transform your Mid 2020 or Early 2019 iMac with a powerful 64GB DDR4 RAM upgrade.
- • **Tailored Compatibility:** Designed specifically for iMac models 20,1, 20,2, and 19,1, ensuring a perfect fit.
- • **Lightning-Fast Performance:** Experience seamless multitasking with 2666MHz speed for all your creative projects.

## Overview

The Timetec 64GB RAM Kit (4x16GB) is a high-performance memory upgrade compatible with Mid 2020 and Early 2019 iMac models. With a speed of 2666MHz and a lifetime warranty, this DDR4 memory ensures your iMac runs smoothly and efficiently, perfect for professionals and creatives alike.

## Description

Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade

## Features

- Compatible For Mid 2020 iMac w/ Retina 5K Display model ID: iMac 20,1 (i5 3.1GHz, i5 3.3GHz, i7 3.8GHz, i9 3.6GHz)
- Compatible For Mid 2020 iMac w/ Retina 5K Display & AMD 5700 XT Video Card model ID: iMac 20,2 (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)
- DDR4 2666MHz PC4-21300/ PC4-21333 Unbuffered NonParity Non-ECC 260 Pin 1.2V CL19 Dual Rank 2Rx8 based 1024x8 Module Size: 64GB Package: 4x16GB
- Wait 30 seconds for your iMac to recognize the new memory; Guaranteed – Lifetime warranty from Purchase Date Free technical support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| RAM | 64 GB DDR4 |
| Memory Speed | 2666 MHz |
| Brand | Timetec |
| Item model number | 78AP26NUS2R8-16GK4 |
| Item Weight | 1.58 ounces |
| Package Dimensions | 3.7 x 3.4 x 0.5 inches |
| Computer Memory Type | DDR4 SDRAM |
| Voltage | 1.2 Volts |
| Manufacturer | Timetec |
| ASIN | B07RTHKVDZ |
| Is Discontinued By Manufacturer | No |
| Date First Available | December 27, 2018 |

## Images

![Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade - Image 1](https://m.media-amazon.com/images/I/81vm5xx6QyL.jpg)
![Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade - Image 2](https://m.media-amazon.com/images/I/61qe23ZGrXL.jpg)
![Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade - Image 3](https://m.media-amazon.com/images/I/A1nD4e2Ml4L.jpg)
![Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade - Image 4](https://m.media-amazon.com/images/I/71eFoQNUiwL.jpg)
![Timetec 64GB KIT(4x16GB) Compatible for Apple DDR4 2666MHz for Mid 2020 iMac (20,1/20,2) / Mid 2019 iMac (19,1) 27-inch w/Retina 5K Display PC4-21333 / PC4-21300 CL19 SODIMM Memory MAC RAM Upgrade - Image 5](https://m.media-amazon.com/images/I/711BQnoywdL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: If i buy the 32gb (2-16's) leave the original 8gb in (total 48gb) in imac 2019, it will work, correct? does it matter what slots the new ram is in?**
A: With duel channel memory everything as to be symmetrical, memory slot 1 & 3, 2 & 4 needs to be the same. However the memory types, speeds etc need to be the same across all 4 slots.

I took my 8gb out and replace with 4 16gb memory sticks, I have a total of 64gb all the same and I've had zero issues, you can never have enough ram so it was cheap and the results are perfect.
A work colleague did what you want to, stuck a 16gb stick in slot 1 & 3 and the original 4gb sticks in 3 & 4. he ended up having issues were the iMac 2019 would crash. To be fair, he reached out to the company and they did replace his ram, so far so good but they have only just been replaced.

Personally I would buy 4 sticks all the same if budget allows and keep the 8gb as back up if you ever have to send it in for repairs or sell them to another 8gb user.

**Q: I have an early 2019 27" iMac Model 19, 1 - is this what I need to upgrade with?**
A: Yes, it is compatible with your iMac 27inch 5K 2019.
If you have any further questions, please feel free to contact support@timetecinc.com.
Thank you,
I.F.
Timetec Inc.

**Q: This shows pc4-21300 apple says to use pc4-21333. is this the right speed for a 2019 imac. why the difference?**
A: I have the same question. None of the third party RAM I can find says PC4-21333.

**Q: Yes installed this in my new mac mini. i now own a brick. what are my options - it will not boot up. what are my options?**
A: Try reseating the ram once more. If no go, I would try using one stick, if it doesn’t boot use the other single stick. If you can get it to boot with either one but not both you know that a module is bad and contact them for return/replacement. If you put back the original it should boot as well. Make sure you follow a guide and use safe practices like anti static wrist bands when working in the minI. If still no boot with original ram, contact apple but don’t say you swapped the ram out ^.-

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works Great! Saved Money!
  

*by H***A on Reviewed in the United States on May 28, 2022*

I was due to purchase a new iMac. I had a 2013 iMac with 32gb and I am a graphic designer. I don't do video or super large files, but I do have a lot of Adobe products open at the same time for work. I did not want to buy the new Mac Studio + Mac Display because it would have been almost 4000+ for that set up. Again, I don't need something super powerful... also Apple has not announced a new version of the iMac. I purchased a 2020 iMac 5K for 1600 and purchased 2 16GB sticks from Mimetic for a total of 32GB. Install was easy and computer booted u like a charm. It is so fast and perfect for what I need. Saving money feels great. Thank you Timetec. Planning to purchase another 32gb for a total of 64GB on my 2020 iMac. Should last me for at least 5 years.... the 2013 lasted me much longer than expected.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Excellent for iMacs
  

*by S***D on Reviewed in the United States on May 4, 2024*

I've bought these before so when it came time to enlarge my iMacs capacity again the choice was easy. These are more affordable and do exactly the same job and their tech support responds promptly to your needs. They are super easy to replace thanks to Apple for designing it this way for us, just remove the power plug and there's a small release button for the door which you remove and then  there are also releases for each card. New ones go in the same position as the ones you're replacing. Just fire it up and enjoy your need for speed!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    2020 iMac 27" now with 40GB RAM
  

*by T***D on Reviewed in the United States on April 6, 2021*

I purchased this to add to the existing 8GB of RAM installed in a 2020 iMac 27" (i7, 512GB SSD) I purchased a few days ago.  The RAM was installed per Apple's prescribed arrangement (Slots 1 and 2 with this 16GB x 2 and 3 and 4 with the original 4GB x 2).  After powering on the iMac with the new RAM installed, it takes ~30 seconds for the system to check it before it will begin booting - during that time, the screen will remain black and it will appear that pushing the power button did nothing to turn on the system.  Give it a moment.  After booting into Big Sur, I checked the RAM to see if this combination was running at full clock speed.  Good to go: 40 GB @ 2667 MHz.  This has greatly improved performance of the computer.  I use Parallels Virtual Machine every day for work.  My former main system was a 2020 MacBook Pro 16" i9 with 16GB of RAM.  This worked great but the iMac now with 40 GB of RAM allows me to avail to the VMs a lot more memory.  I'm very pleased with the iMac now that it has the RAM upgrade.  Time will tell how reliable it is but being Hynix, I doubt there will be any issues.For anyone interested in the performance difference between the iMac 27" with upgraded 8-core i7 (desktop) versus the 16" MacBook with 8-core i9 (mobile), the iMac is faster.  I haven't bothered yet with benchmark tests to quantify the difference. I can tell just from using programs I'm intimately familiar with that it takes less time and GUIs have a little extra pep in their step.  Fusion360 renders significantly quicker, Parallels VMs boot and run even faster - and that isn't to say the MacBook does these jobs poorly.  I will save use of the MacBook for when I have to work in the field.UPDATE:  I just purchased an additional 32GB (16GB x 2) kit to replace the 4GBx2 that remained, taking it up to a total of 64B.  This RAM (new and old) has proven rock solid in every day, strenuous use.  I would definitely recommend it for iMac owners.

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-26*