Description
Overview of the 840758-V91 HPE 32 GB 2666 MHz Pc4-21300 Registered Cl19 DDR4 SDRAM Memory Module
The 840758-V91 HPE 32 GB 2666 MHz Pc4-21300 Registered Cl19 DDR4 SDRAM Memory Module is a high-performance memory module designed for use in HPE servers. It has a capacity of 32 GB and operates at a speed of 2666 MHz.
The memory module uses the DDR4 memory standard, which is the latest generation of memory technology and offers higher performance and improved power efficiency compared to previous generations. It also has a registered (RDIMM) form factor, which is commonly used in servers and workstations for improved reliability and error correction.
This module also features CL19 latencies, which represent the time delay between the memory controller sending a command and the memory module responding. Lower CL numbers typically indicate faster memory access speeds.
The Pc4-21300 in the name of the module refers to the PC4 standard, which is the latest standard for DDR4 memory and stands for ‘performance level 4’. The number “21300” represents the transfer rate of the memory in MT/s (Mega Transfers per second) which is 21,300MT/s.
Technical Specifications and Features of the Memory Module
The 840758-V91 HPE 32 GB 2666 MHz Pc4-21300 Registered Cl19 DDR4 SDRAM Memory Module has the following technical specifications and features:
- Capacity: 32 GB
- Speed: 2666 MHz
- Memory Standard: DDR4
- Form Factor: Registered DIMM (RDIMM)
- Latency: CL19
- Voltage: 1.2 V
- Error Correction: Advanced ECC (Error Correction Code)
- Data Integrity Check: Non-ECC
- PCB (Printed Circuit Board) Height: 34.3mm
- Compatible with HPE ProLiant Gen9 and Gen10 servers
- RoHS compliant
- meets or exceeds JEDEC specifications
Some of the key features of this memory module include:
- High-performance: The 2666 MHz speed of the memory module allows for faster data transfer and improved overall system performance.
- Registered DIMM form factor: This form factor provides improved reliability and error correction, making it ideal for use in servers and workstations.
- Advanced ECC: The memory module supports advanced error correction, which helps to prevent data corruption and improves overall system reliability.
- Low Voltage: The 1.2 V operating voltage of the module helps to improve power efficiency, which can help to reduce overall energy consumption and costs.
- Compatible with HPE servers: The memory module is specifically designed for use in HPE ProLiant Gen9 and Gen10 servers, ensuring compatibility and ease of installation.
- RoHS compliant: The memory module is compliant with the EU Restriction of Hazardous Substances (RoHS) directive, which limits the use of certain hazardous materials in electronic products.
Comparison with other DDR4 Memory Modules
When compared to other DDR4 memory modules, the 840758-V91 HPE 32 GB 2666 MHz Pc4-21300 Registered Cl19 DDR4 SDRAM Memory Module has several key features that set it apart:
- High-performance: The 2666 MHz speed of the memory module is among the highest available for DDR4 memory modules, allowing for faster data transfer and improved overall system performance.
- Registered DIMM form factor: This form factor is commonly used in servers and workstations for improved reliability and error correction, making it a good choice for these types of systems.
- Advanced ECC: The memory module supports advanced error correction, which helps to prevent data corruption and improves overall system reliability.
- Low Voltage: The 1.2 V operating voltage of the module helps to improve power efficiency, which can help to reduce overall energy consumption and costs.
- Compatible with HPE servers: The memory module is specifically designed for use in HPE ProLiant Gen9 and Gen10 servers, ensuring compatibility and ease of installation.
- RoHS compliant: The memory module is compliant with the EU Restriction of Hazardous Substances (RoHS) directive, which limits the use of certain hazardous materials in electronic products.
In comparison, other DDR4 memory modules may have different speeds, capacities, form factors, voltages, and error correction features. The other memory modules may be compatible with different types of systems, and may not have the same level of compliance with certain regulations.
It is also worth noting that the 840758-V91 HPE 32 GB 2666 MHz Pc4-21300 Registered Cl19 DDR4 SDRAM Memory Module is a specific memory module made by HPE for their own servers, so it may not be compatible with other brands of servers.
General Information
- Brand Name: HPE
- MPN: 840758-V91
- Type: Memory (RAM)
- RAM Type: Pc4-21300
- Product Name: 32GB DDR4 SDRAM Memory Module
- SKU: 840758-V91
Technical Information
- Storage Capacity: 32GB
- Memory Technology: DDR4 SDRAM
- Number Of Modules: 1 X 32GB
- Bus Speed: 2666mhz DDR4-2666/PC4-21300
- Data Integrity Check: Ecc
- Signal Processing: Registered
- Cas Latency Timings: Cl19
- Features: 2rx4
- Form Factor: 288-pin Rdimm
Physical Characteristics
- Dimensions (W X D X H) : 8.89 X 19.81 X 1.91 Cm (3.5 X 7.8 X 0.75 In)
- Weight: 0.45 Kg (1 Lb)





