HYNIX HMAA8GL7CPR4N-VK-NEW Dell Server Memory 64GB PC4-2666V-L 4DRX4 99L0475-001

( Brand: Hynix ), ( Manufacturer Part Number: HMAA8GL7CPR4N-VK-NEW ), ( Type: Ddr4 Sdram ), ( Total Capacity: 64gb ), ( Voltage: 1.2v ), ( Number Of Pins: 240 ), ( Bus Speed: Ddr4-2666v-l Pc4-21300 )

Review HYNIX Dell 4drx4 Server Memory

The **Hynix HMMA8GL7CPR4N-VK (Dell 99L0475-001) 64GB PC4-2666V-L 4DRx4 Server Memory** is a high-performance, enterprise-grade DDR4 memory module meticulously engineered to deliver exceptional reliability, scalability, and efficiency for demanding server workloads. This **4GB x 16-rank (4DRx4) RDIMM (Registered DIMM)** module is built on **Samsung Hynix s advanced 16Gb (256Mb) DDR4 DRAM technology**, ensuring optimal data throughput and low-latency performance for mission-critical applications. With a **registered architecture**, it provides robust signal integrity and error correction, making it ideal for high-density server environments where stability and data integrity are paramount. The **PC4-2666V-L** designation indicates a **2666MHz (DDR4-2666) speed** with **ECC (Error-Correcting Code) and fully buffered** design, allowing seamless integration into Dell PowerEdge servers while maximizing memory bandwidth and reducing power consumption compared to non-registered alternatives. This module features **low-power DDR4 (V-L)** technology, which enhances energy efficiency without compromising performance, making it a cost-effective solution for data centers seeking to optimize operational costs. The **4DRx4 configuration** (4 banks of 16 ranks) enables advanced memory interleaving, improving parallel processing capabilities and supporting high-core-count CPUs in multi-socket server configurations. Built to meet **Dell s stringent quality standards**, this memory module undergoes rigorous testing for compatibility with Dell s PowerEdge servers, ensuring seamless compatibility with platforms like the **PowerEdge R740, R750, R7525, and other x86-based enterprise servers**. Whether deployed in virtualized environments, high-performance computing clusters, or large-scale database systems, this module delivers the speed, reliability, and scalability required to handle the most intensive workloads with confidence.

### **Pros and Cons of Buying Hynix HMMA8GL7CPR4N-VK (Dell Part # 99L0475-001) 64GB (4x16GB) PC4-2666V-L 4DRx4 Server Memory**

1. **Dell Compatibility** This is an OEM part specifically designed for Dell PowerEdge servers, ensuring full compatibility with Dell s motherboards and BIOS settings. It avoids potential issues with non-OEM memory that may cause errors or instability.

2. **High Capacity & Density** The 64GB configuration (4x16GB DIMMs) is ideal for enterprise workloads requiring significant RAM, such as virtualization, databases, or high-performance computing. The 4DRx4 (4-rank, 4-DIMM) configuration provides better bandwidth and throughput compared to single-rank or dual-rank modules.

3. **Low Latency & High Performance** PC4-2666 (DDR4-2666) offers a good balance between speed and power efficiency, suitable for most server workloads without requiring extreme performance like DDR4-3200 or higher.

4. **Reliability & Quality** Hynix (now SK Hynix) is a reputable DRAM manufacturer known for stable, high-quality server memory. Dell s OEM parts are typically tested for reliability in enterprise environments.

5. **Registered Memory (RDIMM) Support** This is a registered (RDIMM) module, which is safer for multi-socket servers (e.g., Dell PowerEdge R740, R740xd, R750, R750xa) as it helps prevent voltage spikes on the memory bus.

6. **Cost-Effective for Dell Servers** Since it s an OEM part, it is often priced competitively compared to third-party alternatives, especially when purchased from authorized resellers or Dell s own marketplace.

7. **Future Upgrade Path** DDR4-2666 is a widely supported speed, meaning you can easily upgrade to faster modules (e.g., DDR4-3200) later if needed, though your server s motherboard may limit this.

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1. **Limited Speed Flexibility** DDR4-2666 is not the fastest available option (e.g., DDR4-3200, DDR4-3600, or LRDIMM). If your workload requires maximum performance, you may need to invest in faster modules, though this depends on your server s CPU and chipset support.

2. **Single-Rank vs. Multi-Rank Trade-offs** While 4DRx4 provides good performance, some workloads (e.g., certain database operations) may benefit from higher-rank configurations (e.g., 8DRx4) for even better bandwidth. However, this depends on your server s memory controller and CPU.

3. **Potential Overkill for Smaller Workloads** If you re running lightweight virtualization or basic server roles, 64GB may be more than necessary, leading to higher costs without significant performance gains.

4. **Dell-Specific Form Factor** This is not a universal module. If you ever need to repurpose the server or use it in a non-Dell system, you may face compatibility issues unless the new system supports the same form factor (e.g., 288-pin DDR4 RDIMM).

5. **Power Consumption** DDR4-2666 modules consume slightly more power than lower-speed DDR4 (e.g., DDR4-2133), though the difference is minimal in most enterprise setups.

6. **Potential for Obsolescence** DDR4 is being phased out in favor of DDR5 in newer servers. While this module will work for years, future-proofing may require upgrading to DDR5 eventually.

7. **Licensing & Warranty Considerations** If purchased from a third-party seller (e.g., eBay, Amazon), ensure the module comes with a valid warranty and is not refurbished or open-box. Dell s own parts typically include better support.

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This **Hynix HMMA8GL7CPR4N-VK (Dell 99L0475-001) 64GB DDR4-2666 RDIMM** is an excellent choice for **Dell PowerEdge servers** running demanding workloads like virtualization, databases, or enterprise applications. Its **OEM status ensures compatibility**, while **Hynix s reliability** provides confidence in long-term performance. The **4DRx4 configuration** offers a strong balance of speed and stability, making it suitable for most server roles.

However, if your workload requires **maximum memory bandwidth** (e.g., high-frequency trading, AI/ML, or extreme virtualization), you may want to consider **faster modules (DDR4-3200 or LRDIMM)** if your server supports them. For **smaller or less demanding setups**, a lower-capacity configuration (e.g., 32GB or 16GB) might be more cost-effective.

If you re **certain about the Dell server model** and need **enterprise-grade reliability**, this is a **solid, low-risk purchase**. Always verify the **exact model compatibility** with your server s BIOS and documentation before installation.

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- **Buy from an authorized source** (Dell s official store, Dell Authorized Resellers, or reputable third-party sellers with return policies).

- **Check your server s memory slots** to ensure proper seating (e.g., 4x16GB for a 4-socket system).

- **Monitor for BIOS updates** that may optimize performance with this memory.

- **Consider future needs** if you anticipate scaling up, ensure your server supports additional memory slots.

**Final Verdict:** This is a **high-quality, reliable choice** for Dell servers requiring **64GB of DDR4-2666 RDIMM memory**, especially in enterprise environments where compatibility and stability are critical.

Details:

Condition is Used. Shipped with USPS Ground Advantage. Dell Hynix HMAA8GL7CPR4N-VK 64GB PC4-2666V-L 4DRx4 Server Memory 99L0475-001.

part #: hmaa8gl7cpr4nvk prices

• $199.00-$379.99

specifications servermemor:

• brand: Hynix
• mpn: Hmaa8gl7cpr4n-vk-new
• type: Ddr4 Sdram
• total capacity: 64gb
• voltage: 1.2v
• number of pins: 240
• bus speed: Ddr4-2666v-l Pc4-21300

seller servermemor:

• rating: 100.0%
• # reviews: 91
• city: Glendale, California

offer servermemor:

• started: May 8, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1

shipping servermemor:

• service: USPS Ground Advantage
• class: Standard
• type: Calculated
• transit: 5-11 Days
• cost: $8.75
• carrier: USPS

payments servermemor:

• other
• credit card: Visa
• wallet: Apple-pay

returns servermemor:

• policy: No Returns

general servermemor:

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

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