HYNIX HMCG94AHBRA481N Ecc Rdimm Dual Rank Memory 64GB PC5-51200 DDR5-6400MHZ

( Brand: Hynix ), ( Manufacturer Part Number: HMCG94AHBRA481N ), ( Form Factor: Rdimm ), ( Type: Memory Module ), ( Total Capacity: 64gb ), ( Bus Speed: Pc5-51200 ), ( Memory Type: Ddr5-6400mhz ), ( Memory Features: Ecc Memory )

Review HYNIX Ddr5-6400mhz Ecc Reg Rdimm Dual Rank Memory

The **Hynix HMCG94AHBRA481N 64GB PC5-51200 DDR5-6400MHz ECC Registered Dual-Rank RDIMM** is a high-performance memory module engineered to meet the demanding requirements of enterprise-grade servers, workstations, and data-intensive applications. Built on Hynix s advanced semiconductor technology, this module delivers exceptional reliability, efficiency, and scalability, making it an ideal choice for environments where stability, low latency, and high throughput are critical. Operating at a robust **6400MHz** clock speed, it adheres to the **DDR5-6400** standard, ensuring seamless compatibility with modern Intel Xeon and AMD EPYC processors while maximizing bandwidth for accelerated data processing. The **64GB capacity** (comprising two 32GB ranks) provides ample memory headroom for large-scale workloads, including virtualization, AI/ML training, high-performance computing (HPC), and database management systems, where memory density and speed are paramount.

Designed with **ECC (Error-Correcting Code) technology**, this module actively detects and corrects single-bit errors in real-time, significantly reducing the risk of data corruption and system crashes an essential feature for mission-critical applications where uptime and data integrity cannot be compromised. The **Registered (RDIMM) architecture** further enhances stability by buffering commands from the memory controller, minimizing signal interference and improving signal integrity across multi-socket configurations. This makes it particularly well-suited for servers with multiple CPU sockets, where memory bandwidth and latency must be tightly managed to prevent bottlenecks. The **dual-rank configuration** (two 32GB ranks per module) optimizes memory bandwidth utilization, allowing for higher throughput and reduced latency compared to single-rank alternatives, which is crucial for latency-sensitive applications like real-time analytics or high-frequency trading.

Constructed with high-quality, low-power components, this memory module adheres to strict thermal and power efficiency standards, ensuring consistent performance even under sustained heavy loads. The **PC5-51200** specification (equivalent to DDR5-6400) guarantees a **51.2GB/s** memory bandwidth per channel, enabling faster data transfers and improved system responsiveness. Whether deployed in a single-socket workstation or a multi-node cluster, this module s robust design ensures long-term reliability, making it a cost-effective solution for organizations prioritizing performance, scalability, and durability. Additionally, its compatibility with a wide range of server platforms including those from Dell, HP, Lenovo, and other leading vendors ensures seamless integration into existing infrastructure, reducing deployment complexity and minimizing downtime. For enterprises and professionals demanding the highest standards of memory performance, the **Hynix HMCG94AHBRA481N** stands as a premium choice, delivering a perfect balance of speed, capacity, and dependability.

### **Pros and Cons of Hynix HMCG94AHBRA481N (64GB PC5-51200 DDR5-6400MHz ECC RDIMM Dual Rank)**

1. **High Capacity (64GB)** Suitable for workstations, servers, and high-end gaming PCs requiring substantial memory.

2. **DDR5-6400MHz Speed** Faster than DDR4, improving system responsiveness in memory-intensive tasks.

3. **ECC Support** Corrects data errors, making it ideal for servers, workstations, and applications requiring data integrity (e.g., databases, virtualization).

4. **Registered (RDIMM) Design** Reduces load on the memory controller, improving stability in multi-socket systems.

5. **Dual Rank Configuration** Allows for better bandwidth utilization compared to single-rank modules.

6. **Hynix Brand Reliability** Hynix is a trusted manufacturer with consistent performance and compatibility.

7. **Future-Proofing** DDR5 is the current standard, ensuring compatibility with newer CPUs and motherboards.

1. **High Cost** DDR5 memory is significantly more expensive than DDR4, especially for high-capacity ECC modules.

2. **Power Consumption** DDR5 modules draw more power than DDR4, which may increase system power draw and cooling requirements.

3. **Compatibility Issues** Requires a motherboard with DDR5 support and a compatible CPU (e.g., Intel 12th/13th/14th Gen or AMD Ryzen 7000/8000).

4. **Limited Availability** High-capacity ECC RDIMMs may be harder to find compared to consumer-grade DDR5.

5. **Overkill for Gaming** Unless running a high-end gaming rig with extreme RAM demands, 64GB may be excessive for most gamers.

6. **Potential Latency** Registered memory can introduce slight latency compared to unbuffered (UDIMM) modules in some workloads.

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### **Conclusion and Recommendation**

- **Workstations** (video editing, 3D rendering, CAD)

- **Servers** (databases, virtualization, enterprise applications)

- **High-end gaming PCs** (if paired with a high-end CPU and need for extra memory)

- **Future-proofing** (if upgrading to a DDR5 system)

However, if you are a **gamer or content creator on a budget**, a **lower-capacity (32GB) non-ECC DDR5 module** may be more cost-effective. For **consumer-grade use**, unbuffered (UDIMM) memory is often sufficient unless running memory-intensive applications.

- **Buy if:** You need **ECC, high capacity, or server/workstation performance** and have a compatible system.

- **Avoid if:** You are on a tight budget, gaming without extreme RAM needs, or using a DDR4 system.

For most users, **32GB ECC RDIMM** would be a more balanced choice unless 64GB is absolutely necessary. Always verify motherboard and CPU compatibility before purchasing.

Details:

HMCG94AHBRA481N Brand. ECC Registered Conditions. Item Condition New others means item pulled from brand new system and does not have original Manufacturer packaging material.

Warranty Ensure the item is compatible with your system before buying product. Memory Module Part Number. Item condition Refurbished means we pull the parts from working systems. 64GB Memory Type.

Error Correction. Hynix Capacity. Hynix 64GB PC5-51200 DDR5-6400MHz ECC REG RDIMM Dual Rank Memory Module: NOTE: This is for Server Only, WILL NOT WORK ON PERSONAL COMPUTERS/ DESKTOP/ LAPTOP.

DDR5-6400MHz Bus Type. Refurbished items must be packed with proper materials to prevent physical damage during transit. Fast N secure Delivery.

part #: hmcg94ahbra481n prices

• $390.88-$2190.00

specifications servermemor:

• brand: Hynix
• mpn: Hmcg94ahbra481n
• form factor: Rdimm
• type: Memory Module
• total capacity: 64gb
• bus speed: Pc5-51200
• memory type: Ddr5-6400mhz
• memory features: Ecc Memory

general servermemor:

• condition: Used
• Enterprise Networking, Servers > Server Components > Server Memory RAM

seller servermemor:

• rating: 99.8%
• city: Richardson, Texas
• # reviews: 17210

payments servermemor:

• credit card: Visa
• wallet: Paypal
• other

returns servermemor:

• time: 30 Days
• paid by: Buyer
• method: Money back
• policy: Returns Accepted

offer servermemor:

• quantity: 3
• availability: In Stock
• options: Ship-to-home
• started: May 20, 2026
• best offers: True
• sold: 0

shipping servermemor:

• type: Fixed
• cost: $0.00
• transit: 2-6 Days
• class: Standard
• service: Standard

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