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HP H7B65AR 2TB Kit (64x32GB) DDR4-2133MHz RDIMM 2Rx4 CL15 Memory
- Total Capacity: 2TB (64 x 32GB modules)
- Memory Type: DDR4
- Form Factor: RDIMM (Registered DIMM)
- Speed: 2133MHz (PC4-17000)
- CAS Latency: CL15
- Configuration: 2Rx4 (Dual Rank, x4 Data Width per Rank)
- Designed for servers and high-end workstations
- Enhances system performance for memory-intensive applications
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Product Overview
This HP memory kit, part number H7B65AR, consists of 64 individual 32GB DDR4 RDIMM modules, totaling 2TB of RAM. The memory operates at a speed of 2133MHz with timings of CL15. It is configured as 2Rx4 (dual rank, four data channels per rank) and is suitable for high-performance server and workstation environments requiring substantial memory capacity and bandwidth.
Technical Information
| Part Number | H7B65AR |
| Brand | HP |
| Total Capacity | 2TB |
| Module Capacity | 32GB |
| Number of Modules | 64 |
Additional Specifications
| Memory Type | DDR4 |
| Form Factor | RDIMM |
| Speed | 2133MHz |
| CAS Latency | CL15 |
| Rank | 2Rx4 |
Product Description
The HP H7B65AR is a comprehensive memory upgrade kit designed to provide an immense 2TB of RAM for demanding enterprise-grade systems. This kit comprises sixty-four individual 32GB DDR4 Registered DIMMs (RDIMMs), offering a high-density solution for servers and workstations that require substantial memory resources. The DDR4 technology ensures improved performance and power efficiency compared to previous generations, while the RDIMM format includes an onboard register to buffer command and address signals, reducing electrical load on the memory controller and enabling higher module counts and capacities. Operating at a speed of 2133MHz (also known as PC4-17000), these modules deliver robust performance suitable for a wide array of applications, including large-scale virtualization, complex database management, scientific simulations, and high-performance computing. The CAS Latency of CL15 indicates the number of clock cycles required to access a particular column in a row, contributing to the overall responsiveness of the memory subsystem. The 2Rx4 configuration signifies that each module is dual-ranked, with each rank utilizing x4 data-wide DRAM chips, which can offer performance benefits in certain memory controller architectures by allowing for more parallel operations. This 2TB memory kit is specifically tailored for HP servers and workstations that support this configuration, ensuring compatibility and optimal performance. By equipping a system with such a large amount of high-speed RAM, users can significantly enhance multitasking capabilities, reduce reliance on slower storage for data caching, and accelerate the processing of memory-intensive workloads. The H7B65AR is a critical component for environments where maximum memory capacity and reliable performance are essential.


