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RDIMM: Reliable Memory for Demanding Workloads

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The often understated, yet critical cause of system instability and data errors is memory. Standard PC RAM is often not designed for the demands of 24/7 operations. This is where RDIMMs come in: they offer the highest stability, error correction (ECC), and reliable performance, even under extreme workloads. With RDIMM memory, you can run your server landscape in a scalable, secure, and efficient manner. Secure your RDIMM modules now to ensure your servers operate reliably, powerfully, and are future-proof!

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RDIMM Prices

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Samsung

M321R2GA3EB0-CWM Samsung 1x16GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €843.40 €906.88 for 1 piece

Kingston

KSM32RD4/64MFR Kingston 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €987.40 €1,061.68 for 1 piece

Kingston

KSM56R46BD8-32HA Kingston 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,437.90 €1,546.06 for 1 piece

Samsung

M393A2K43CB2-CTD Samsung 1x16GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €377.20 €419.07 for 1 piece

Kingston

KSM56R46BD8-32MD Kingston 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,311.10 €1,409.74 for 1 piece

Samsung

M321R4GA3EB2-CCP Samsung 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,528.40 €1,643.44 for 1 piece

Micron

MTC20F2085S1RC48BA1 Micron 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,391.90 €1,496.64 for 1 piece

Micron

MTC40F2046S1RC56BD1R Micron 1x64GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €2,802.80 €3,013.69 for 1 piece

Samsung

M393A4K40DB2-CVF Samsung 1x32GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €643.20 €691.60 for 1 piece

Kingston

KSM32RD4/64HCR Kingston 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €982.30 €1,056.17 for 1 piece

Micron

MTC20F1045S1RC56BD1R Micron 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €580.80 €645.24 for 1 piece

Crucial

MTC20F2085S1RC64BD2R Crucial 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,556.70 €1,673.82 for 1 piece

Samsung

M386A8K40CM2-CVF Samsung 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €764.30 €821.79 for 1 piece

Samsung

M393A8G40CB4-CWE Samsung 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €1,103.90 €1,186.96 for 1 piece

Samsung

M321R8GA0EB2-CCP Samsung 1x64GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €2,628.00 €2,825.78 for 1 piece

Kingston

KSM56R46BD8PMI-32MDI Kingston 1x32GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €1,179.30 €1,268.06 for 1 piece

Samsung

M393A8G40AB2-CWE Samsung 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €1,109.70 €1,193.22 for 1 piece

Kingston

KTH-PL426/32G Kingston 1x32GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €663.10 €712.95 for 1 piece

Samsung

M393A4K40CB1-CRC Samsung 1x32GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €441.20 €490.21 for 1 piece

Samsung

M321R8GA0PB0-CWM Samsung 1x64GB DDR5 RDIMM ECC RAM

In stock

Bulk pricing from €2,941.40 €3,162.70 for 1 piece

Kingston

KSM32RS4/32HCR Kingston 1x32GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €512.40 €569.29 for 1 piece

Micron

MTA36ASF8G72PZ-3G2F1 Micron 1x64GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €1,062.50 €1,142.45 for 1 piece

Kingston

KTL-TS426/32G Kingston 1x32GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €555.00 €616.64 for 1 piece

Samsung

M393AAG40M32-CAE Samsung 1x128GB DDR4 RDIMM ECC RAM

In stock

Bulk pricing from €2,084.40 €2,241.25 for 1 piece

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Frequently Asked Questions about RAM ECC RDIMM:

RDIMMs follow JEDEC standards: DDR4-RDIMMs feature 288 pins and a x72-bit data organization (64-bit data plus 8-bit ECC). DDR5-RDIMMs also have 288 pins and additionally use On-Die ECC at the chip level, which corrects internal errors but does not replace system ECC. The pinout includes data lines (DQ/DQS), address and control lines (CA bus), and dedicated signals for the register. RDIMMs are designed for use in designated server and workstation platforms and are electrically incompatible with UDIMM slots.

Higher clock frequencies increase data throughput but can slightly increase latency. RDIMM modules balance signal stability through the register, allowing high frequencies to be used without errors in multi-CPU environments. The right clock choice depends on workloads: database and virtualization environments benefit from faster RAM, while ECC ensures error correction.

Theoretically, yes. However, differences in timing, voltage, and clock frequencies can lead to instability or suboptimality. For critical applications and maximum reliability, it is advisable to use homogeneous RDIMM sets from the same manufacturer. This ensures consistent performance and reliable operation in high-performance servers.

Yes, RDIMMs are by definition ECC-capable (x72-organization: 64-bit data + 8-bit checksum code). They automatically correct single-bit errors (SEC) and detect multi-bit errors (DED) in real-time. Error checking is performed by the integrated memory controller (e.g., Intel IMC), while the server BIOS logs corrections. Non-ECC RDIMMs are rare and mostly OEM-specific; ECC significantly reduces soft errors and is essential for critical workloads such as finance or HPC.

Yes, RDIMM is excellently suited for high-end workstations, especially for CAD, AI, or scientific simulations. The modules offer high security through ECC support and more stable signal processing even under continuous load. They enable the parallel operation of multiple applications or VMs without any drop in computing power or system stability.

Efficient Memory Solutions – The Advantages of RDIMM

RDIMM RAM offers significant performance and stability advantages for servers, workstations, and data centers. Thanks to the register, CPUs can work more efficiently, even when many memory banks are used simultaneously.

These are the advantages of RDIMM:

  • Higher reliability: Error correction prevents system crashes.
  • Optimal memory management: Efficient use of RAM in multi-socket systems.
  • Scalability: More modules per server allow for higher total capacities.
  • Performance enhancement: Stable and consistent system performance even with high memory utilization.
  • Reduced electrical load: Longer lifespan of the CPU and memory controllers.

With RDIMM, you ensure your system has the necessary stability and efficiency to smoothly and powerfully execute even the most demanding applications.

Difference RDIMM vs. UDIMM

Many wonder why RDIMM RAM is better suited than UDIMM. The differences can be clearly demonstrated technically:

Feature RDIMM (Registered DIMM) UDIMM (Unbuffered DIMM)
Register Includes a register for address and control signals between CPU and DRAM No register, direct connection to CPU
Error Correction (ECC) Typically supports ECC automatically ECC support possible, exception: Consumer UDIMMs
Maximum Capacity Higher capacity per module possible Lower capacity per module
Application Area Servers, workstations, multi-socket systems Desktop PCs
Reliability Very high, stable under memory-intensive workloads Lower, less stable under high load
Performance in Multi-Socket Systems Optimizes CPU load and reduces electrical load Limited performance with many memory banks

The choice of RDIMM over UDIMM is essential for professional IT infrastructures to minimize failure risks and ensure maximum performance.

RDIMMs from Server Hardware – Scalable & Secure Memory Solutions

In the demanding server environment, the smallest details decide performance, stability, and the fault tolerance of the entire system. Therefore, we rely on high-quality solutions that reliably optimize your IT infrastructure.

  • ISO9001-2015 certified company: All our processes – from the careful selection and testing of the RDIMM modules to their secure packaging and shipping – adhere to a strict and documented quality management system.
  • Extended warranty up to 6 years: Extend the warranty for your RDIMM RAM up to 6 years and benefit from maximum planning security.
  • 24/7 Customer Service: Our service team is available 24/7, 365 days a year – for installation questions, compatibility checks, or urgent emergencies.
  • Extra discount for bulk orders: Resellers, system integrators, and companies benefit from attractive volume discounts and special B2B conditions.

Contact Us!

RDIMM modules offer maximum stability, reliability, and flexibility – whether in the data center or for your corporate network. Find the right module in our shop now or contact our customer service for comprehensive support!