HP 4M9Y0AA 16GB DDR5 4800 U non-ECC UDIMM 288PIN content_copy

The product is a memory module from manufacturer HP, type MEM, with manufacturer number 4M9Y0AA. It is a DDR5 module with a memory capacity of 16 GB, designed as UDIMM (Unbuffered DIMM). The module is intended for use in PC and server applications and features a memory clock speed of 4800 MHz. The form factor corresponds to a 288-pin DIMM, ensuring physical compatibility with appropriate motherboards. The module is not ECC-capable, meaning it does not provide error correction via memory cells and is therefore intended for applications where high speed and capacity are prioritized, but redundant error detection is not required.

Applications
This memory module is primarily designed for use in modern desktop PCs and servers requiring high bandwidth and fast data processing. DDR5 technology enables higher data transfer rates compared to previous generations, which is particularly beneficial for demanding applications such as professional image editing, 3D rendering, virtualization, or databases. The clock speed of 4800 MHz supports efficient utilization of memory bandwidth, thereby enhancing overall system performance.

Features and Specifications in Detail
The module offers a memory capacity of 16 GB, provided in a single module (1 x 16 GB). The use of the 288-pin DIMM form factor ensures compatibility with standard PC motherboards featuring corresponding memory slots. The memory architecture is based on DDR5, the current generation of memory, which offers higher efficiency and speed. The clock speed of 4800 MHz enables fast data transfer, improving system performance during data-intensive tasks. The module is not ECC-capable, which is sufficient for systems without error correction requirements.

Technical Explanation
DDR5 is the current memory standard generation, offering higher speed and improved energy efficiency compared to DDR4. The clock speed of 4800 MHz means the module can process 4.8 billion data cycles per second, resulting in faster system response. The 288-pin DIMM form factor is the standard for desktop PCs and ensures a stable mechanical connection to the motherboard. The designation UDIMM (Unbuffered DIMM) indicates that the module does not buffer data, enabling direct memory access, although it does not provide error correction.

Compatibility and Accessories
The module is designed for use in PC and server systems, with exact compatibility depending on the specific motherboard and processor. It is essential that the motherboard features appropriate memory slots for 288-pin DIMM modules and supports DDR5 memory with a clock speed of 4800 MHz. Use in servers is possible, but without ECC functionality, which is often insufficient for critical server applications.

Installation and Mounting
Installation involves inserting the module into the corresponding memory slot on the motherboard. It is important to ensure the connector is properly aligned and the module is fully seated until it clicks into place to guarantee a secure mechanical connection. Most motherboards feature mechanical guides to facilitate correct insertion. After installation, the system must be restarted to ensure memory detection.

Operational Advantages
The use of this memory module provides a high memory capacity of 16 GB at a clock speed of 4800 MHz, resulting in improved system performance. DDR5 technology ensures higher bandwidth and energy efficiency, which is particularly advantageous for performance-intensive applications. The UDIMM configuration allows direct memory addressing, which is sufficient for many desktop applications. Compatibility with modern PC and server systems makes it a universally applicable solution for work environments.

Features
Internal memory	16 GB
Memory layout (modules x size)	1 x 16 GB
Internal memory type	DDR5
Memory clock speed	4800 MHz
Component for	PC/Server
Memory form factor	288-pin DIMM
ECC
Logistics data
Harmonized System (HS) code	84733020
Other features
UNSPSC-code	32101602
Country of origin	China, Vietnam, South Korea
Total carbon footprint (kg of CO2e)	20
Packaging data
Package width	159 mm
Package depth	235 mm
Package height	25.4 mm
Package weight	90.7 g
Technical details
General Product Safety Regulation (GPSR) URL	https://support.hp.com/us-en/document/ish_6126692-6126777-16?openCLC=true
Weight & dimensions
Width	133.3 mm
Depth	31.2 mm
Height	2.67 mm
Weight	12.43 g

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