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4 Year Office Equipment Protection Plan

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Synology RAM DDR4 ECC Unbuffered SODIMM 4GB (D4ES02-4G)

4.7 4.7 out of 5 stars 29 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Computer Memory by Synology
$89.99
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.
4GB
D4ES02-4G
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Purchase options and add-ons

Brand Synology
Computer Memory Size 4 GB
RAM Memory Technology DDR4
Memory Speed 3200 MT/s
Compatible Devices Synology Device

About this item

  • 5-year warranty
  • Built and designed for maximum performance and reliability in Synology devices
  • Please check Synology website for compatible models

Customers usually keep this item

This product has fewer returns than average compared to similar products.

Frequently bought together

Synology RAM DDR4 ECC Unbuffered SODIMM 4GB (D4ES02-4G)
$89.99
Get it as soon as Saturday, May 4
In Stock
Ships from and sold by Amazon.com.
+
Synology M.2 2280 NVMe SSD SNV3410 400GB (SNV3410-400G)
$149.99
Get it as soon as Saturday, May 4
In Stock
Ships from and sold by Amazon.com.
+
Synology 2-Bay DiskStation DS723+ (Diskless)
$448.99
Get it as soon as Monday, May 6
Ships from and sold by Amazon.com.
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Top Brand: Synology

Highly Rated
50K+ customers rate items from this brand highly
Trending
10K+ orders for this brand in past 3 months
Low Returns
Customers usually keep items from this brand

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Synology RAM DDR4 ECC Unbuffered SODIMM 4GB (D4ES02-4G)
Synology RAM DDR4 ECC Unbuffered SODIMM 4GB (D4ES02-4G)
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Price$89.99-5% $171.63
List: $179.99		$343.99$88.88$179.99$80.41
Delivery
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Get it as soon as Saturday, May 4
Customer Ratings
4.74.7 out of 5 stars29
4.74.7 out of 5 stars29
4.74.7 out of 5 stars29
4.84.8 out of 5 stars1,051
4.34.3 out of 5 stars28
4.84.8 out of 5 stars355
Easy to install
5.0
5.0
5.0
4.8
—
4.8
Stability
5.0
5.0
5.0
4.8
—
—
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
computer memory size
4 GB
8 GB
16 GB
4 GB
8 GB
0 TB
memory speed
3200 mt s
3200 mt s
3200 mt s
3200 mt s
3200 mt s
1600 MHz
RAM tech
DDR4
DDR4
DDR4
DDR4
DDR4
DDR3
number of items
1
1
1
1
1
1
data transfer rate
2666 MHz
—
—
2666 MHz
—
12 gigabits per second
number of pins
260
260
260
260
260
204
compatible devices
Synology Device
Synology Device
Synology Device
Server
Synology Device
Server
form factor
SO-DIMM
SO-DIMM
SO-DIMM
SO-DIMM
SO-DIMM
SO-DIMM
voltage
1.2 volts
1.2 volts
1.2 volts
1.2 volts
1.2 volts
1.35 volts

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Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Synology

Synology RAM DDR4 ECC Unbuffered SODIMM 4GB (D4ES02-4G)

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Product Description

Always select authentic Synology memory modules for optimum compatibility and reliability. Installation of non-Synology memory modules can lead to system instability or boot failures. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information on memory upgrade limitations, visit Synology website.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
29 global ratings

Top reviews from the United States

Richard
5.0 out of 5 stars Works without issue.
Reviewed in the United States on March 29, 2024
Style: 4GBSize: D4ES02-4GVerified Purchase
It made my NAS a bit snappier. It was easy to install and has been working for 3 months without issue.
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meak
4.0 out of 5 stars Expensive but works.
Reviewed in the United States on May 31, 2023
Style: 8GBSize: D4ES02-8GVerified Purchase
Works good but expensive.
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Ernest P. Tedesco Jr.
3.0 out of 5 stars It’s RAM
Reviewed in the United States on February 4, 2024
Style: 8GBSize: D4ES02-8GVerified Purchase
Bought this additional RAM to speed up my NASBAY speed but only noticed a little bit of an increase. Guess I gotta spend a few more thousand dollars to speed things up
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Todd & Melanie
4.0 out of 5 stars It works well but $$$$$$$ is a bit over the top
Reviewed in the United States on March 27, 2024
Style: 16GBSize: D4ES01-16G
I went with Synology Ram to keep their NAS happy and prevent them from backing out of their warranty. This RAM works well, but RAM should not cost this much. They are simply taking advantage of their users, and the same is true with their switch, which wants you to use only their HD. Yes, you can use other RAM and HD, but if you run into a system issue, you risk them not supporting the product and helping you sort out the issue, which is a risk with your data. I backed up to other sources as well, so I would likely be able to rebuild my NAS, but at the time, I just took the hit and paid the money for their RAM. It will be interesting to see what they do if the new Ugreen NAS upsets the ecosystem and has a good interface for users because then we would be back to being able to pick and choose our RAM, HD, and NVME SSDs for our NAS. Balls in your court, Synology!
One person found this helpful
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Top reviews from other countries

DanD
5.0 out of 5 stars Extend the memory for Synologyc
Reviewed in Canada on November 28, 2023
Style: 4GBSize: D4ES02-4GVerified Purchase
Extend the memory for Synologyc; now I have on DS923+ 8 Go memory ; very happy to have it.
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