16GB Server RAM – DDR4 & DDR5 RDIMM, LRDIMM Prices

Compare 16GB Server RAM Prices – Choose from original DDR4 and DDR5 ECC RDIMM and LRDIMM modules from Samsung, SK Hynix, and Micron. These are the same OEM-quality memory modules trusted by Dell, HPE, Lenovo, and other enterprise server brands — fully compatible and performance-matched, without the OEM label or price premium.

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Compare 16GB Server RAM Modules – RDIMM & LRDIMM DDR4, DDR5

Part Number	Brand	Size	Speed	Form Factor
P12400-B21	HPE	8GB	DDR4-2933	RDIMM	Order
P27134-B21	HPE	128GB	DDR4-2933	LRDIMM	Order
809084-091	HPE	32GB	DDR4-2400	LRDIMM	Order
R4S30A	HPE	256GB	DDR4-3200	LRDIMM	Order
840757-091	HPE	16GB	DDR4-2666	RDIMM	Order
805349-K21	HPE	16GB	DDR4-2400	RDIMM	Order
809208-B21	HPE	128GB	DDR4-2400	LRDIMM	Order
726728-B21	HPE	32GB	DDR4-2133	RDIMM	Order
840755-191	HPE	8GB	DDR4-2666	RDIMM	Order
P19047-B21	HPE	128GB	DDR4-2933	LRDIMM	Order
882344-B21	HPE	16GB	DDR4-2400	RDIMM	Order
804843-001	HPE	8GB	DDR4-2133	RDIMM	Order
713755-071	HPE	8GB	DDR3-1600	RDIMM	Order
879507-B21	HPE	16GB	DDR4-2666	UDIMM	Order
P13208-001	HPE	8GB	DDR4-2933	RDIMM	Order
805347-B21	HPE	8GB	DDR4-2400	RDIMM	Order
819414-001	HPE	32GB	DDR4-2400	LRDIMM	Order
P06039-B21	HPE	256GB	DDR4-3200	LRDIMM	Order
3TQ40AA	HPE	16GB	DDR4-2666	UDIMM	Order
840757-191	HPE	16GB	DDR4-2666	RDIMM	Order

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Manufactured by Industry Leaders

We offer memory modules manufactured by Samsung, SK Hynix, or Micron— the very same industry‐leading suppliers Dell, HPE, Cisco relies on. This ensures each module meets high standards for performance, compatibility, and reliability, giving you genuine, equivalent quality at a competitive price.

Server RAM – FAQs

How do I know if my server supports a specific memory module size?

To check if your server supports a given module size (e.g., 64GB, 96GB, 128GB, or 256GB), refer to your server’s technical documentation or use our compatibility filters. Key factors include:
– Maximum memory per slot and total system capacity
– Support for RDIMM vs LRDIMM
– Memory rank limitations (e.g., dual, quad, octa)
– Voltage and speed compatibility (e.g., 1.2V DDR4-3200 or 1.1V DDR5-5600)
If you’re unsure, our team can help you verify the best match for your system — get in touch with support.

How do I choose between DDR3, DDR4, and DDR5 for server memory?

Choosing the right memory generation depends on your server’s hardware compatibility and performance needs. DDR4 and DDR5 provide faster speeds and improved energy efficiency compared to DDR3, making them better suited for modern workloads like virtualization, high-performance computing, and databases.
See our guide DDR3 vs DDR4 vs DDR5 Datacenter Memory Comparison

What is the difference between RDIMM and LRDIMM server memory?

RDIMMs (Registered DIMMs) are commonly used in standard server setups, offering solid performance and reliability. LRDIMMs (Load-Reduced DIMMs) are designed to support higher memory capacities and better signal integrity, making them ideal for memory-intensive workloads such as virtualization, large databases, and enterprise applications.
Learn more in our guide: LRDIMM vs RDIMM Memory Comparision

Is ECC RAM necessary for server configurations?

Yes, ECC (Error-Correcting Code) RAM is strongly recommended for most server environments. It helps detect and correct bit-level memory errors, improving system stability and reducing the risk of crashes—especially in applications involving virtualization, databases, or mission-critical workloads.
Explore the differences in our guide ECC vs Non-ECC Memory Explained

What do memory ranks (dual, quad, octa) mean for server RAM modules?

Memory rank refers to how DRAM chips are organized on a server RAM module—common types include dual-rank (2R), quad-rank (4R), and octa-rank (8R). Higher-rank modules typically allow for more memory per DIMM but may also introduce additional latency and power consumption. These ranks can impact performance, density, and platform compatibility, depending on the server’s CPU and motherboard.
Learn more in our full guide: Single vs Dual vs Quad vs Octa Rank Explained