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HP 4M9Y4AT 8GB DDR5-4800MHz SODIMM 1Rx16 CL40 Memory
- 8GB DDR5 memory capacity
- SODIMM form factor for laptops and compact systems
- Speed: 4800MHz (PC5-38400)
- CAS Latency: CL40
- Voltage: 1.1V
- Configuration: 1Rx16 (Single Rank, x16 organization)
- Enhances multitasking and application performance
- Direct replacement or upgrade for compatible HP and other systems
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Typically 1-2 handling + 3-7 transit days
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For government, enterprise, data center, and small business customers.
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Product Overview
The HP 4M9Y4AT is an 8GB DDR5 SODIMM memory module designed for laptops and compact PCs. It operates at 4800MHz with CL40 latency, providing a significant performance upgrade for compatible systems.
Technical Information
| Memory Type | DDR5 |
| Capacity | 8GB |
| Form Factor | SODIMM |
| Speed | 4800MHz |
| CAS Latency (CL) | 40 |
Additional Specifications
| Voltage | 1.1V |
| Rank | 1Rx16 |
| Module Type | Unbuffered |
| Error Correction | Non-ECC |
Product Description
The HP 4M9Y4AT is an 8GB DDR5 SODIMM memory module, specifically designed to enhance the performance of laptops and other compact computing devices. DDR5 technology brings substantial improvements in bandwidth and efficiency compared to its predecessors, making this module ideal for modern computing demands. Operating at a speed of 4800MHz (PC5-38400), it ensures rapid data access, which translates to quicker application loading times, smoother multitasking, and overall improved system responsiveness. The 1Rx16 configuration signifies a single rank module with a 16-bit memory bank organization, optimized for high-speed data transfer. This memory module features a CAS Latency (CL) of 40. While DDR5 memory inherently has higher latencies than DDR4, the increased clock speeds and architectural enhancements of DDR5 provide a net performance benefit for most applications. The module operates at a low voltage of 1.1V, contributing to reduced power consumption and extended battery life in portable devices. Its SODIMM form factor is standard for laptops and small form factor PCs, ensuring physical compatibility with a wide range of systems that support DDR5 memory upgrades. Upgrading to 8GB of DDR5 RAM with the HP 4M9Y4AT can significantly benefit users who engage in activities such as web browsing with multiple tabs, office productivity tasks, light photo editing, or casual gaming. It provides a noticeable improvement over systems equipped with less memory or older DDR generations. This module is a reliable choice for users seeking to refresh or enhance the performance of their compatible HP notebooks or other small form factor computers, ensuring they can handle current software demands effectively.

