Synology 8GB DDR4 2666 MHz UDIMM Memory Module

BH #SYD4EC26668G • MFR #D4EC-2666-8G
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Synology 8GB DDR4 2666 MHz UDIMM Memory Module
Key Features
  • For Select Synology NAS Units
  • 8GB (1 x 8GB) Capacity
  • 2666 MHz Clock Speed
  • PC4-21300
Upgrade the memory in select Synology NAS units using the 8GB DDR4 2666 MHz UDIMM Memory Module from Synology. This single RAM module features a capacity of 8GB, a clock speed of 2666 MHz (PC4-21300), and a 288-pin DIMM form factor. It operates using 1.2V, features Error-Correcting Code (ECC) technology, and is unbuffered. This memory module is protected by a limited 5-year warranty.
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Synology DDR4 2666 MHz UDIMM Overview

Upgrade the memory in select Synology NAS units using the 8GB DDR4 2666 MHz UDIMM Memory Module from Synology. This single RAM module features a capacity of 8GB, a clock speed of 2666 MHz (PC4-21300), and a 288-pin DIMM form factor. It operates using 1.2V, features Error-Correcting Code (ECC) technology, and is unbuffered. This memory module is protected by a limited 5-year warranty.

General Features
Compatibility
SA3400D, SA3200D, UC3400, UC3200, RS3621xs+, RS3621RPxs, RS2821RP+, RS2421RP+, RS2421+, RS1619xs+, RS3618xs, RS4017xs+, RS3617xs+, and RS3617RPxs
UPC: 846504003525

Synology DDR4 2666 MHz UDIMM Specs

Key Specs
Compatibility
Synology: SA3400D / SA3200D / UC3400 / UC3200 / RS3621xs+ / RS3621RPxs / RS2821RP+ / RS2421RP+ / RS2421+ / RS1619xs+ / RS3618xs / RS4017xs+ / RS3617xs+ / RS3617RPxs
Capacity
8 GB
Memory Type
DDR4
Compatibility
Synology: SA3400D / SA3200D / UC3400 / UC3200 / RS3621xs+ / RS3621RPxs / RS2821RP+ / RS2421RP+ / RS2421+ / RS1619xs+ / RS3618xs / RS4017xs+ / RS3617xs+ / RS3617RPxs
Capacity
8 GB
Maximum Speed
Up to PC4-21300 (2666 MT/s)
Memory Type
DDR4
DIMM Type
288-Pin DIMM
Buffered/Registered
No
Error Correction (ECC)
ECC
Voltage
1.2 V
Packaging Info
Package Weight
0.125 lb
Box Dimensions (LxWxH)
7.3 x 4.1 x 0.5"

Synology DDR4 2666 MHz UDIMM Reviews

Excellent Customer Service and Very Quick Free Shipping

By Jodi
Rated 5 out of 5
Date: 2026-05-26

B&H has amazing customer service! They even called me personally to confirm my order. The product that I purchased was exactly as described in their listing and I received the delivery the very next day after purchase.

Great Ram

By Victor
Rated 5 out of 5
Date: 2022-05-20

Needed more memory synology is the way to go with there synology system

See any errors on this page?

what is the brand for this RAM?

what is the brand for this RAM?
Asked by: Ahmed
The manufacturer of the RAN is Synology.
Answered by: Moe
Date published: 2021-01-06
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