---
product_id: 75532404
title: "HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM"
brand: "sk hynix"
price: "€ 42.63"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sk Hynix"
url: https://www.desertcart.gr/products/75532404-hma851s6cjr6n-vk-non-ecc-pc4-2666v-4gb-ddr4-at-2666mhz
store_origin: GR
region: Greece
---

# HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM

**Brand:** sk hynix
**Price:** € 42.63
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM by sk hynix
- **How much does it cost?** € 42.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/75532404-hma851s6cjr6n-vk-non-ecc-pc4-2666v-4gb-ddr4-at-2666mhz)

## Best For

- sk hynix enthusiasts

## Why This Product

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

## Description

SK hynix HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM

Review: Detected on start up. - The memory was detected immediately and is running very well after upgrading from 4 to 8 gigs on a laptop purchased used on ebay. Very low price.
Review: RAM - I recently bought a cheap HP laptop that only came with 4 GB of RAM but had a an open RAM slot available. I knew going in that I would upgrade the RAM immediately. This RAM stick was actually identical to the one that came preinstalled in the HP machine. Same manufacturer and same model #. I popped it in and to the open slot and BIOS and Windows recognized immediately. No issues. For the price it is hard to beat if you are upgrading from 4 GB to 8 GB on a laptop with an open DIMM slot. A lot of OEMs are going to be using this exact stick. HP model this went into is Model: 14-DK1003DX for anyone looking to upgrade the same machine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GH7RRTM |
| Additional Features | Lightweight |
| Best Sellers Rank | #2,252 in Computer Memory |
| Brand | SK Hynix |
| Compatible Devices | Laptop |
| Computer Memory Size | 4 GB |
| Customer Reviews | 4.7 out of 5 stars 542 Reviews |
| Data Transfer Rate | 2666 MHz |
| Form Factor | SO-DIMM |
| Manufacturer | SK hynix |
| Memory Speed | 2666 MHz |
| Model Name | HMA851S6CJR6N - VK |
| Number of Pins | 260 |
| RAM Memory Technology | DDR4 |
| RAM Size | 4 GB |
| Special Feature | Lightweight |
| UPC | 631719218792 |
| Voltage | 1.2 Volts |

## Product Details

- **Brand:** SK Hynix
- **Compatible Devices:** Laptop
- **Computer Memory Size:** 4 GB
- **Memory Speed:** 2666 MHz
- **RAM Memory Technology:** DDR4

## Images

![HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM - Image 1](https://m.media-amazon.com/images/I/711TnrTODrL.jpg)

## Questions & Answers

**Q: Is it the right module for my iMac 2019?**
A: I bought 2 of this memory modules for my iMac 27" 2019 3,7 GHz core i5. I ordered these modules since manufacturer and reference were the same as the 2 original 4 Go modules shipped with computer.
See Apple > About this Mac > Memory to check which kind of memory you already own. I now run a 16 Go iMac under Mojave and the System Monitor App shows it's the correct RAM size in this context.

**Q: I have a hp all in one desk top computer with 4gb sk hynix 2666mhz memory.  what memory do i need to buy to replace this and upgrade my speed?**
A: Make it's the right one..the more you increase the memory..but. also check your hard drive for space.  Go to HP web site on BOIS up grade up date

**Q: On a laptop with two RAM slots, how do you differentiate the right-facing stick vs the left-facing stick?**
A: These will fit only one way into the RAM slots. Typically there is no right or left facing sticks. The notch on the card where the contacts will prevent you from inserting the RAM the wrong way. BOTH installs the same "face"

**Q: I had a typo in my previous question. i mean to say my dell inspiron came with ddr3,  can i use this ddr4 to replace?**
A: DDR3 goes with DDR3 laptop. Cannot change to DDR4. It won’t fit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Detected on start up.
*by M***N on April 12, 2024*

The memory was detected immediately and is running very well after upgrading from 4 to 8 gigs on a laptop purchased used on ebay. Very low price.

### ⭐⭐⭐⭐⭐ RAM
*by A***1 on June 27, 2020*

I recently bought a cheap HP laptop that only came with 4 GB of RAM but had a an open RAM slot available. I knew going in that I would upgrade the RAM immediately. This RAM stick was actually identical to the one that came preinstalled in the HP machine. Same manufacturer and same model #. I popped it in and to the open slot and BIOS and Windows recognized immediately. No issues. For the price it is hard to beat if you are upgrading from 4 GB to 8 GB on a laptop with an open DIMM slot. A lot of OEMs are going to be using this exact stick. HP model this went into is Model: 14-DK1003DX for anyone looking to upgrade the same machine.

### ⭐⭐⭐⭐⭐ Great value, fixed my lagging, fits HP Elitebook
*by M***B on April 22, 2020*

Problem statement: my computer started lagging after a mandatory Windows 10 “upgrade”. I couldn’t open several programs at once and my computer would crash at random. I assumed it was a RAM issue so I opted to buy a stick since I had an open slot. As some other reviewers mentioned, this is the same brand that came stock in my HP laptop (Elitebook), so I was comforted by this and the fact that this was the cheapest option per GB: Win/win It was easy to install and when I restarted my laptop it recognized the new hardware immediately and when I checked in device manager the new memory appeared in the total RAM. (A friendly reminder, don’t over tighten the screws upon reattaching the laptop cover, those little screws are easily stripped...) Also, to answer one of the questions above from a user: laptop RAM is different in physical size/shape than your typical desktop CPU RAM so make sure you buy the correct item. If you are adding Additional RAM, the best way to find out what you need is to see what you already have in your computer. The two side by side RAM slots will accept the same size/shape RAM memory stick. Even though you may be planning on purchasing 8gb and already have a 4gb stick installed, those two sticks of memory are going to be the same physical size. I wouldn’t buy RAM without getting a visual on 1) how many available slots I have; 2)what the actual existing RAM configuration is. For example, in my last computer I thought since I had 8Gb of RAM that I had an available slot for another 8gb. I was lazy and didn’t bother opening the machine prior to ordering, only to find out that I already had two sticks of 4gb (not one 8gb) and I had to remove one 4gb stick to use the new 8gb stick, resulting in 12gb of RAM instead of the 16gb I was hoping for. to sum up my product experience: Great value and certainly worth the 5 minutes it took to install and reboot.

## Frequently Bought Together

- SK hynix HMA851S6CJR6N - VK Non ECC PC4-2666V 4GB DDR4 at 2666MHz 260pin SDRAM SODIMM Single Kit Laptop Memory - OEM
- SK Hynix 4GB DDR4 2666MHz SODIMM Memory Module
- Laptop Memory Module HMA851S6DJR6N-XN Compatible Replacement Spare Part for SK Hynix HMA851S6DJR6N 4GB 1RX16 DDR4 SO-DIMM PC4-25600 3200MHz 260-Pin Non-ECC CL22 1.2V

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-23*