R4C22A HPE 256GB DDR4 2933mhz PC4-23400 Reg ECC 288-pin Ram

Overview of HPE R4C22A 256GB DDR4-2933 ECC Memory 

The HPE R4C22A 256GB DDR4-2933 ECC Registered memory kit is engineered to deliver exceptional speed, reliability, and scalability for enterprise-grade servers. Designed for mission-critical environments, this high-capacity RAM solution consists of 4 x 64GB DDR4 SDRAM modules, offering a total of 256GB optimized for demanding virtualization, database, analytics, and cloud workloads. Built with advanced error correction and registered buffering technology, this server memory module enhances system stability while maximizing throughput in high-performance computing infrastructures.

General Information

• Manufacturer: HPE 
• Part Number: R4C22A 
• Product Type: Memory Module

Technical Specifications

• Total Capacity: 256GB (4 x 64GB DIMMs)
• Memory Type: DDR4 SDRAM
• Form Factor: 288-Pin DIMM
• Speed Rating: 2933MHz / PC4-23400
• CAS Latency: CL21 (21-21-21)
• Voltage: 1.2V Low Power Consumption
• Rank Configuration: Dual Rank x4
• Error Checking: ECC (Error-Correcting Code)
• Buffered Type: Registered (RDIMM)

Compatible HPE ProLiant Gen10 Servers

• HPE ProLiant BL460c Gen10
• HPE ProLiant DL380 Gen10 (Base, Entry, SMB, High Performance, Performance, Solution)
• HPE ProLiant DL560 Gen10 (Base, Entry, Performance)
• HPE ProLiant DL580 Gen10 (Base, Entry, Performance)
• HPE ProLiant ML350 Gen10 (Base, Entry, Performance, Solution, Sub-entry)

Compatible HPE Apollo Servers

• HPE Apollo 2000 XL170r
• HPE Apollo 2000 XL190r
• HPE Apollo 4200
• HPE Apollo 4500 XL450
• HPE Apollo 6500

The HPE R4C22A 256GB 2933MHz PC4-23400 ECC DDR4 RAM 

The HPE 256GB 2933MHz PC4-23400 ECC Registered DDR4 288-Pin RAM R4C22A is a high-capacity enterprise-grade memory module engineered to deliver exceptional reliability, scalability, and performance for mission-critical data center environments. Designed and validated by Hewlett Packard Enterprise (HPE), this DDR4 server memory kit is optimized for compatibility with HPE ProLiant servers and other enterprise platforms that require registered ECC memory technology.Built with advanced PC4-23400 DDR4 architecture and operating at 2933MT/s, this 256GB memory configuration significantly enhances server responsiveness, virtualization density, database performance, and cloud computing workloads. Its 288-pin RDIMM form factor ensures stable connectivity and efficient power delivery while maintaining signal integrity across demanding enterprise deployments.

Advanced 2933MHz Performance

Operating at 2933MHz, the PC4-23400 memory specification provides superior bandwidth compared to previous DDR3 and lower-frequency DDR4 generations. This increased data transfer rate allows servers to process larger workloads with reduced latency and improved throughput. For data-intensive applications such as virtualization clusters, in-memory databases, artificial intelligence workloads, and real-time analytics, higher frequency memory ensures smoother operation and faster response times.The 2933MT/s speed improves memory channel utilization across compatible processors, enabling optimized performance scaling in multi-core server CPUs. When paired with enterprise processors, the R4C22A memory kit ensures balanced compute and memory resources to avoid bottlenecks during peak workloads.

High-Capacity 256GB Ram

With a total capacity of 256GB, this HPE memory solution dramatically increases virtualization density by allowing more virtual machines per host. Hypervisors such as VMware, Microsoft Hyper-V, and other enterprise virtualization platforms rely heavily on available memory resources to maintain optimal VM performance. Higher RAM capacity reduces swapping and disk I/O overhead, enabling faster provisioning, improved resource allocation, and better overall infrastructure efficiency. Organizations expanding their private cloud or hybrid cloud environments benefit significantly from this memory upgrade.

PC4-23400 Memory Bandwidth 

PC4-23400 denotes a theoretical peak bandwidth of 23,400 MB/s per module, enabling significant improvements in memory throughput. This level of performance is critical for high-density virtualization, enterprise resource planning systems, and large-scale storage environments where consistent data flow is essential. Enhanced bandwidth contributes to improved application performance, faster virtual machine provisioning, and smoother multitasking across server workloads. Organizations deploying hyper-converged infrastructure or software-defined storage benefit greatly from this elevated data transfer capacity.

ECC Registered (RDIMM) Technology

The ECC (Error-Correcting Code) functionality integrated into the HPE R4C22A module automatically detects and corrects single-bit memory errors while identifying multi-bit issues. This capability is essential in enterprise environments where data corruption can result in downtime, financial loss, or compromised system integrity. ECC memory is particularly important for database servers, virtualization hosts, financial applications, healthcare systems, and government infrastructure where data accuracy and uptime are non-negotiable. By implementing ECC technology, HPE ensures enhanced protection against unexpected memory faults.

Advanced DDR4 Technology for Optimized Performance

DDR4 SDRAM technology significantly enhances bandwidth efficiency and reduces latency compared to previous-generation memory modules. Operating at 2933MHz, this RAM module supports high-speed data transfer rates ideal for virtualization clusters, ERP systems, large-scale databases, and software-defined storage environments.

Dual Rank x4 Configuration

The dual-rank x4 memory architecture provides balanced performance and capacity. This configuration improves memory interleaving, enabling more efficient data access patterns across multiple channels.

288-Pin RDIMM Form Factor Compatibility

The 288-pin DDR4 RDIMM design ensures compatibility with a wide range of HPE ProLiant servers and enterprise-grade systems that support registered DDR4 memory modules. The standardized form factor allows seamless installation into supported server motherboards without mechanical or electrical modification.HPE rigorously tests and validates its memory modules to guarantee compatibility with certified server platforms. This validation process ensures reliable integration and sustained performance under real-world operating conditions.

Energy Efficiency and Power Optimization

DDR4 technology operates at lower voltage levels compared to DDR3, typically at 1.2V, reducing overall power consumption. Lower voltage translates into improved energy efficiency across large data center deployments where hundreds or thousands of servers operate simultaneously. Reduced power usage contributes to lower operational costs and supports environmentally conscious IT strategies. For enterprises seeking to optimize their energy footprint, upgrading to efficient DDR4 RDIMM modules is a practical solution.

Compatibility with HPE Server Ecosystems

Integration with HPE ProLiant Servers

The HPE R4C22A memory module is specifically designed and certified for use in compatible HPE ProLiant Gen10 and later server platforms. This ensures seamless firmware recognition, optimized performance tuning, and full system compatibility. Using genuine HPE Smart Memory provides additional benefits such as enhanced system monitoring, authentication features, and improved reliability compared to generic third-party modules.

High-Performance Computing (HPC)

HPC workloads rely on fast and reliable memory to process complex simulations, engineering applications, and scientific research models. The 2933MHz speed and ECC protection ensure accurate computations and reduced processing latency.

Reduced Downtime and Increased Uptime

Reliable ECC registered memory plays a vital role in maintaining high availability systems. By minimizing memory-related failures and ensuring stable operation, organizations can achieve improved uptime and enhanced service continuity.

Long-Term Operational Stability

With ECC protection, registered architecture, and HPE validation, this memory solution delivers long-term reliability essential for business continuity and mission-critical operations.