FREE next day delivery on in-stock items over £50! Offer ends soon!


Rated Excellent
4.8 star rating
Free delivery over £50
to most of the UK
0% interest for 4 months
on purchases over £99
Custom PCs built fast
delivered in 4-5 days
3 year on-site PC warranty*
including parts & labour

FREE next day delivery on in-stock items over £50! Offer ends soon!

Adata Premier 8GB (1x 8GB) 2666MHz DDR4 RAM

CCL Code: RAM4146
Manufacturer Code: AD4U266638G19-S
| Manufacturer: Adata

Key Features:

  • Voltage: 1.2V
  • Latency Timing: CL19
  • Speed: 2666MHz (PC4-21300)
  • 1 x 8GB U-DIMM Memory
  • non-ECC Unbuffered Memory

Delivery Options (from £1.20)

Tomorrow via Priority DPD

Monday 6th December via Royal Mail

Order within

Collection Options

Tomorrow from Local Collection Point


inc VAT

20 In Stock Now

Buying in bulk or need help? Email our Business Team.



ADATA Premier DDR4 2666 unbuffered-DIMM memory is the latest upgrade solution that supports Intel's newest platforms for faster data transfer and enhanced power efficiency. Utilizing a 288-pin design, operating voltage has been reduced from 1.5V on DDR3 to 1.2V, which not only helps save power by 20%, but also boosts transfer bandwidth speed to 21.3GB/s. Every chip in ADATA memory modules meets strict JEDEC and RoHS standards, ensuring compatibility, stability, and environmentally friendly products.

Lightning speed PCIe Gen3x4

  • Complies with JEDEC standards
  • RoHS compliant
  • Supports Intel Skylake-X and Kaby Lake-X CPU

Lifetime Warranty

All ADATA memory modules are produced and tested using a rigorous quality control process for rapid computing and stable operation. In addition, ADATA memory modules provide customers a lifetime warranty for maximum assurance with excellent service.

Main Features

  • High speed up to 2666MHz
  • Transfer bandwidth up to 21.3GB/s
  • Energy efficient: saves 20% power compared to DDR3
  • 8-layer PCB provides improved signal transfer and system stability
  • Supports Intel Skylake-X and Kaby Lake-X CPU


Memory Size 8 GB
Memory Type DDR4
Memory Speed 2666MHz
Designation PC4-21300
Memory Chip Features RoHS compliant • JEDEC standard
Memory Size (Total) 8 GB
Number of Modules 1 module(s)
Memory Size (Individual) 8 GB
Pin Configuration 288 pins
Memory Package U-DIMM
Module Configuration 1024Mx8
Bus I/O Configuration Unbuffered
Error Correction No
CAS Latency C19


Voltage 1.2 V


Form Factor DDR4 Desktop Memory
Colour Green
In The Box 1 x 8GB DIMM
Height 3.1 cm


Warranty Limited Lifetime

Key Features

Individual Module Size 8192 MB
Main Colour Green
Memory Modules Kit Size 1
Memory Standard PC4-21300
Memory CAS 19
Memory Voltage 1.2 V
Memory ECC No
Memory Buffered No
XMP Support No

Item Details

Manufacturer Adata
Manufacturer Code AD4U266638G19-S
Alternative Part Numbers AD4U266688G19-SGN, AD4U26668G19-SGN, AD4U2666W8G19-S
EAN 4713218461582
Condition New

Warranty Information

Warranty Limited Lifetime

Manufacturer Information

Manufacturer Adata
Manufacturer Code AD4U266638G19-S
Questions and Answers

Do you have you a question about the ADATA Premier 8GB (1 x 8GB) PC4-21300 2666MHz 1.2V CL19 DDR4 Desktop Memory DIMM?

Q: I'm looking to upgrade my Acer Nitro N50-600 pc from 8gb to 16gb. Is this the correct memory card?
Post Answer
5 / 5 3 reviews

Robert Kyle

last month

Does the job

James John

2 months ago

Arrived next day and works perfectly. Very good value.


October 2020

This Is the best site (value for Money) and I was able to Match up some ram (comprehensive stock)don't bother looking anywhere else ,unless you want to pay more

View more products like this

Customers also viewed these items