LENOVO 01KR255 Rdimm 32GB DDR4-2666 CL19 HMA84GR7AFR4N-VK

( Brand: Lenovo ), ( Manufacturer Part Number: 01KR255 ), ( Type: Enterprise )

Review LENOVO Ddr4-2666 Rdimm Miss Component

The **Lenovo 01KR255 32GB DDR4-2666 RDIMM CL19 HMA84GR7AFR4N-VK** memory module is a high-performance, enterprise-grade RAM solution designed to deliver exceptional speed, reliability, and scalability for demanding computing environments. Part of the **Hynix HMA84GR7AFR4N** series, this **Registered Dual In-Line Memory Module (RDIMM)** is engineered to meet the rigorous requirements of modern data centers, servers, and high-end workstations where memory bandwidth, latency, and stability are critical. With a **32GB capacity per module**, this RDIMM provides a substantial boost to system memory, enabling seamless multitasking, accelerated data processing, and improved virtualization performance ideal for applications such as cloud computing, database management, AI/ML workloads, and large-scale enterprise operations.

Operating at a **DDR4-2666 MHz** clock speed, this memory module achieves a balanced performance profile, offering a **CL19 CAS latency** that ensures efficient data access while maintaining energy efficiency. The **RDIMM architecture** incorporates a **registered buffer**, which helps mitigate signal integrity issues on longer memory buses, reducing the risk of data corruption and improving overall system stability particularly in configurations with multiple memory slots or high-channel counts. The **Hynix HMA84GR7AFR4N** chipset is built with advanced manufacturing processes, ensuring low power consumption, extended operational lifespan, and robust error correction capabilities, which are essential for maintaining uptime in mission-critical environments.

This module is fully compatible with **Lenovo s server and workstation platforms**, including the **ThinkSystem SR650, SR670, SR685, and other high-end server models**, as well as select **ThinkStation P and PX series workstations** that support RDIMM configurations. The **VK (Virtualization-Ready) designation** indicates that it is optimized for virtualized environments, where memory efficiency and quick allocation are paramount. Whether deployed in a **2U rack server, blade system, or high-performance desktop**, this memory module ensures that systems can handle intensive workloads with confidence, reducing latency and maximizing throughput for applications that demand peak performance.

For IT administrators and system integrators, the **01KR255** represents a cost-effective yet high-performance upgrade option, offering a reliable alternative to more expensive low-latency or high-capacity ECC UDIMMs. Its **ECC (Error-Correcting Code) functionality** further enhances data integrity, making it a trusted choice for environments where memory errors could lead to costly downtime or data loss. With its **2666 MHz speed**, **CL19 timing**, and **32GB capacity**, this RDIMM module is a versatile addition to any server or workstation configuration seeking a balance of speed, reliability, and scalability in enterprise-grade computing.

### **Pros and Cons of buying a Lenovo 01KR255 (32GB DDR4-2666 RDIMM CL19 HMA84GR7AFR4N-VK)**

1. **High Capacity and Performance** This is a **32GB RDIMM (Registered DIMM)** module, which is designed for **server, workstation, or high-end desktop systems** requiring large memory pools. The **2666MHz speed** and **CL19 latency** provide a good balance between performance and stability in multi-core environments.

2. **Registered DIMM (RDIMM) Design** RDIMMs are optimized for **multi-channel memory configurations**, reducing signal noise and improving reliability in systems with **multiple DIMM slots**. They are commonly used in **enterprise, virtualization, and high-performance computing** setups.

3. **Compatibility with High-End Systems** This module is likely **ECC (Error-Correcting Code) compatible**, which is crucial for **data integrity** in servers, workstations, and mission-critical applications. It fits into **DDR4-2666 RDIMM slots**, making it suitable for **Xeon, EPYC, or high-end Xeon Scalable processors**.

4. **Long-Term Availability** Lenovo s **HMA84GR7AFR4N-VK** is a **standard industrial-grade memory module**, meaning it is **widely stocked** and should remain available for years, reducing the risk of obsolescence.

5. **Cost-Effective for Large Configurations** While individual 32GB RDIMMs are **more expensive than consumer-grade DIMMs**, they offer **better value in bulk setups** (e.g., 4x32GB 128GB) compared to buying multiple smaller modules.

6. **Low Power Consumption** DDR4-2666 modules are **more power-efficient** than older DDR3 or faster DDR4 variants, reducing heat and energy costs in data centers.

7. **Reliability for Enterprise Use** Lenovo s **industrial-grade memory** is built to withstand **extended operational lifespans**, making it ideal for **24/7 server environments**.

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1. **High Cost per GB** Compared to **consumer DDR4 SO-DIMMs or UDIMMs**, this module is **significantly more expensive per gigabyte**. For example, a 32GB RDIMM costs **far more** than a 32GB consumer DIMM, limiting its use to **high-end or professional applications**.

2. **Requires Registered DIMM Slots** This module **cannot be used in standard desktop motherboards** unless they have **RDIMM support** (common in **workstations, servers, or Xeon-based systems**). Most consumer motherboards use **UDIMMs (Unbuffered DIMMs)**, making this module **useless for gaming or budget PCs**.

3. **Limited Upgrade Flexibility** If you buy this for a **workstation or server**, you may need **multiple modules** (e.g., 4x32GB for 128GB), which increases cost. If your system later requires **different speeds or capacities**, upgrading may be **cost-prohibitive**.

4. **Potential Latency Impact** While **CL19 is decent for server workloads**, it may not be the **lowest possible latency** for **gaming or extreme overclocking**. However, this is **less of an issue in enterprise environments** where throughput matters more than latency.

5. **Overkill for Consumer Use** Unless you are running **virtualization, database servers, or AI workloads**, this module is **far more than necessary** for most users. A **16GB or 32GB UDIMM** would suffice for **gaming, content creation, or office work**.

6. **Warranty and Return Risks** Since this is **server-grade memory**, some retailers may have **stricter return policies**, and **damaged modules** (even if defective) may be harder to replace under warranty.

7. **Not Future-Proof for All Uses** While DDR4 is still widely used, **DDR5 is becoming the standard** in newer enterprise systems. If you plan to **upgrade your CPU or motherboard in 3-5 years**, you may need to **replace the memory entirely**, increasing long-term costs.

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- **Enterprise servers** (virtualization, databases, file servers)

- **High-end workstations** (video editing, 3D rendering, AI/ML workloads)

- **Xeon or EPYC-based systems** requiring **large, reliable memory pools**

- **Gaming PCs** (consumer UDIMMs are cheaper and sufficient)

- **Budget builds** (overkill for office or casual use)

- **DDR5-upgrade paths** (if future-proofing is a concern)

If you are **certain about your use case** (server, workstation, or high-end professional setup), this module provides **reliability, scalability, and performance**. Otherwise, **cheaper UDIMMs or lower-capacity RDIMMs** may be a better fit.

- **Buy if:** You are setting up a **server, workstation, or Xeon-based system** that requires **32GB RDIMM memory** for stability and performance.

- **Avoid if:** You are building a **gaming PC, budget desktop, or Mac system** (where UDIMMs or lower-cost modules are sufficient).

- **Alternative Consideration:** If you need **DDR4 but not RDIMM**, look for **ECC UDIMMs** (e.g., Corsair Vengeance LPX ECC) for a **better price-to-performance ratio** in non-server applications.

Would you like recommendations for specific motherboard or CPU pairings for this memory?

Details:

Item:01KR255 Lenovo 32GB DDR4-2666 RDIMM CL19 HMA84GR7AFR4N-VK miss component, condition: REF, Qty:1 Shipping 1.

part #: 01kr255 prices

• $187.41-$1884.74

specifications servermemor:

• brand: Lenovo
• mpn: 01kr255
• type: Enterprise

general servermemor:

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

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seller servermemor:

• rating: 99.9%
• city: Walnut, California
• # reviews: 20554

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• policy: No Returns

shipping servermemor:

• cost: $0.00
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• service: USPS First Class

offer servermemor:

• options: Ship-to-home
• best offers: True
• sold: 0
• availability: In Stock
• started: April 9, 2026
• quantity: 1

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