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HP Z5K58AV 64GB Kit (2x32GB) DDR4-2666MHz RDIMM 2Rx4 CL19 Memory
- Kit includes 2 x 32GB DDR4 Registered DIMM (RDIMM) modules.
- Total capacity of 64GB.
- Memory speed: DDR4-2666MHz.
- CAS Latency (CL): 19.
- Rank: 2Rx4 (Dual Rank x4 organization).
- Suitable for high-performance servers and workstations.
- Supports ECC (Error-Correcting Code) functionality.
- Higher bandwidth compared to lower speed DDR4 modules.
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Product Overview
The HP Z5K58AV is a memory kit comprising two 32GB DDR4-2666MHz RDIMM modules, totaling 64GB. Designed for servers and workstations, it operates at 2666MHz with CL19 latency, offering high capacity and performance for demanding enterprise workloads.
Technical Information
| Memory Type | DDR4 SDRAM |
| Form Factor | RDIMM (Registered DIMM) |
| Capacity | 64GB (2 x 32GB) |
| Speed | 2666MHz |
Additional Specifications
| CAS Latency | CL19 |
| Rank | 2Rx4 |
| Voltage | 1.2V (Standard DDR4) |
| ECC | Yes (Registered) |
Product Description
The HP Z5K58AV memory kit delivers a substantial 64GB of DDR4 RAM, configured as two 32GB Registered DIMM (RDIMM) modules. This high-capacity configuration is engineered for demanding enterprise environments, including servers, high-performance workstations, and data-intensive applications like virtualization, large databases, and complex simulations. RDIMMs incorporate onboard registers that buffer and relay memory commands, reducing the electrical load on the memory controller and enabling higher memory capacities and improved system stability, which is critical for mission-critical operations. Operating at a speed of 2666MHz, these modules provide excellent bandwidth, facilitating faster data processing and improved application performance. The CAS Latency (CL) is rated at 19 clock cycles. While higher latency can sometimes be a trade-off for higher speeds, the overall performance gain from 2666MHz is significant for memory-bound workloads. The 2Rx4 rank configuration indicates that each 32GB module is organized into two ranks, with each rank using x4 (4-bit-wide) memory chips. This configuration is common in high-density server memory modules and can offer performance benefits in certain memory access patterns. As RDIMMs, these modules support ECC (Error-Correcting Code) functionality, which is vital for maintaining data integrity in server environments by detecting and correcting memory errors. This enhances system reliability and prevents data corruption. Compatibility with specific server models and motherboards should always be confirmed via the manufacturer's documentation or Qualified Vendor List (QVL) to ensure proper operation and maximum performance.

