ADATA Premier 8GB DDR4 2666MHz U-DIMM Desktop RAM is a reliable memory upgrade designed for compatible desktop computers and DDR4 motherboards. With 8GB capacity, 2666MHz operating speed and PC4-21300 bandwidth, it provides responsive system performance for everyday computing, multitasking, office applications and general desktop workloads.
This memory module uses the standard 288-pin U-DIMM desktop form factor and operates at 1.2V, helping deliver improved power efficiency compared with previous-generation DDR3 memory. The module features CL19 latency and an unbuffered, non-ECC design for compatible consumer desktop platforms.
ADATA Premier DDR4 2666MHz memory is built to JEDEC DDR4 specifications and uses an 8-layer PCB designed to support signal transfer and system stability. It supports selected Intel and AMD desktop platforms, including compatible Intel Skylake, Kaby Lake, Coffee Lake and Cannon Lake platforms, as well as AMD AM4 and TR4 platforms.
Before purchasing, confirm that your motherboard supports DDR4 2666MHz U-DIMM memory, 8GB modules and the required capacity configuration.
Product Specifications
| Specification | Details |
|---|---|
| Brand | ADATA |
| Product Series | Premier |
| Product Type | Desktop RAM |
| Model | AD4U266638G19-R |
| Part Number | AD4U266638G19-R |
| Memory Capacity | 8GB |
| Memory Type | DDR4 SDRAM |
| Memory Speed | 2666MHz |
| Memory Standard | DDR4-2666 / PC4-21300 |
| Form Factor | U-DIMM / DIMM |
| Pins | 288-Pin |
| Module Configuration | 1 x 8GB |
| CAS Latency | CL19 |
| Timing | CL19-19-19 |
| Voltage | 1.2V |
| Memory Type | Unbuffered |
| ECC | Non-ECC |
| Bandwidth | Up to 21.3GB/s |
| PCB | 8-Layer PCB |
| Operating Temperature | 0°C to 85°C |
FAQ’s
Q1. Is this ADATA RAM compatible with desktop computers?
A1. Yes. This is a 288-pin DDR4 U-DIMM designed for compatible desktop computers and DDR4 motherboards.
Q2. What is the speed of this ADATA Premier RAM?
A2. The module operates at 2666MHz and uses the PC4-21300 DDR4 memory standard.
Q3. Does this RAM use 288 pins?
A3. Yes. It uses the standard 288-pin U-DIMM form factor for desktop DDR4 memory.
Q4. What voltage does this 8GB DDR4 RAM use?
A4. It operates at 1.2V.
Q5. Is this RAM compatible with both Intel and AMD systems?
A5. It supports compatible Intel and AMD desktop platforms. Always check your motherboard’s supported DDR4 memory specifications before installation.



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