# Memory module ADATA DDR4 4GB 2666MHz

**URL:** https://aio.lv/en/product--adata-ad4s26664g19-sgn--10443644
**Data updated:** 2026-01-06 11:17 (EET)
**Category:** Memory (RAM)
**Manufacturer:** ADATA
**Manufacturer code:** AD4S26664G19-SGN
**EAN:** 4711085931474
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 38.42 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--adata-ad4s26664g19-sgn--10443644

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The ADATA AD4S26664G19-SGN is a 4GB DDR4 memory module designed for laptops. It features a 2666 MHz clock speed and a 260-pin SO-DIMM form factor, ensuring compatibility with a wide range of devices. With a CAS latency of 19, this memory module provides reliable performance for everyday computing tasks, enhancing multitasking capabilities and overall system responsiveness.

## Long description

The ADATA AD4S26664G19-SGN is a 4GB DDR4 2666MHz SO-DIMM memory module for laptops, offered in a 260-pin form factor and designed to provide a straightforward upgrade path for compatible notebooks. It supports a 2666 MHz clock speed with CAS latency 19 and operates at 1.2 V, delivering improved data transfer rates and lower power consumption compared with previous DDR3 modules.
Advantages
This ADATA DDR4 4GB 2666MHz module offers faster data transfer speeds and reduced energy use relative to older DRAM generations, which helps decrease heat output and can extend battery life in portable systems. The SO-DIMM 260-pin format ensures compatibility with most notebooks that accept DDR4 memory, while the industry-standard voltage and timing (1.2 V, CL19) provide stable, reliable operation for everyday computing and multitasking.
Suitable for
 Everyday laptop computing and web browsing
 Office applications and light multitasking
 Upgrading compatible notebooks that accept 260-pin DDR4 SO-DIMM
 Replacing a faulty or underperforming 4GB DDR4 module
Key specifications
 Capacity: 4 GB
 Memory type: DDR4
 Clock speed: 2666 MHz
 Form factor: 260-pin SO-DIMM
 CAS latency: 19
 Voltage: 1.2 V
 Manufacturer part number (MPN): AD4S26664G19-SGN
 EAN: 4711085931474
How to use
Power off the laptop, disconnect any power sources and remove the battery if possible. Open the memory compartment or bottom cover according to the notebook manufacturer’s instructions, locate the existing SO-DIMM slot, and gently release the retention clips. Align the notch of the ADATA DDR4 4GB 2666MHz module with the slot, insert at a slight angle until the contacts are seated, then press down until the clips lock the module in place. Reassemble the laptop, reconnect power, and verify the new memory is recognized in the system BIOS or operating system.
Usage recommendations
For best compatibility, consult your notebook’s documentation to confirm support for 260-pin DDR4 SO-DIMM modules and 2666 MHz speeds. When upgrading capacity, install identical modules (same capacity, speed, and voltage) in matched pairs where the system supports dual-channel operation to achieve optimal performance.

## Specifications

### Features

| Feature | Value |
|---|---|
| Internal memory | 4 GB |
| Internal memory type | DDR4 |
| Memory clock speed | 2666 MHz |
| Memory form factor | 260-pin SO-DIMM |
| Memory voltage | 1.2 |
| ECC | No |
| CAS latency | 19 |
| Component for | Laptop |
| Memory layout (modules x size) | 1 x 4 |
| JEDEC standard | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 85 |

### Other features

| Feature | Value |
|---|---|
| Height (imperial) | 1.18 " |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733020 |

### Sustainability

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

## FAQ

### How much does the Memory module ADATA 4GB AD4S26664G19-SGN cost, and is it available for purchase?

The price is 46.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All ADATA products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized ADATA service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: internal memory, internal memory type, memory clock speed, memory form factor, memory voltage, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/10443644/62686139_large.webp