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Dell AC448843 128GB DDR5-4800MT/s ECC Registered Server RAM
The Dell AC448843 128GB DDR5-4800MT/s ECC Registered Server RAM is a high-capacity memory module designed for compatible enterprise servers and professional workstation platforms. With 128GB capacity and a 4800 MT/s data rate, it supports demanding workloads such as virtualization, database management, cloud infrastructure, and large-scale data processing.
This module is identified by Dell part number AC448843 and manufacturer part number SNPMMWR9C/128G. Published specifications identify it as DDR5 ECC Registered DIMM (RDIMM) memory with a quad-rank 4Rx4 configuration, 1.1V operating voltage, and a 288-pin form factor.
Key Features and Benefits
- 128GB capacity: Provides substantial memory for demanding enterprise applications and virtualized environments.
- DDR5-4800 data rate: Delivers a rated transfer rate of 4800 MT/s on supported platforms.
- ECC support: Helps detect and correct supported memory errors to improve data integrity.
- Registered DIMM design: Designed for compatible server memory architectures.
- Quad-rank 4Rx4 configuration: Uses a four-rank memory organization with x4 DRAM devices.
- 1.1V operation: Uses the specified DDR5 operating voltage.
Technical Specifications
| Specification | Details |
|---|
| Brand | Dell |
| Part Number | AC448843 |
| Manufacturer Part Number | SNPMMWR9C/128G |
| Memory Capacity | 128GB |
| Memory Technology | DDR5 SDRAM |
| Data Rate | 4800 MT/s |
| Memory Standard | PC5-38400 |
| Module Type | ECC Registered DIMM (RDIMM) |
| Error Correction | ECC |
| Rank Configuration | 4Rx4, quad rank |
| Form Factor | 288-pin DIMM |
| Operating Voltage | 1.1V |
| CAS Latency | CL40, as listed by compatible-module suppliers |
| Typical Application | Compatible servers and professional workstations |
Specifications are based on published listings for AC448843 and compatible modules. Confirm the label and exact module specification when sourcing OEM-branded memory.
Compatibility
AC448843 is listed for selected Dell PowerEdge servers and Precision workstations. Examples in supplier compatibility listings include:
- Dell PowerEdge R760
- Dell PowerEdge MX760c
- Dell PowerEdge XE7745
- Selected Dell Precision workstation configurations supporting 128GB DDR5-4800 memory modules
Compatibility varies by system model, processor, memory-slot population, and supported rank or module technology. Check the system service manual and memory configuration guide before ordering.
Applications
- Enterprise server memory expansion
- Virtualization and virtual machine hosting
- Database and business application servers
- Cloud and data-center infrastructure
- Large-memory professional workstation workloads
- Data-intensive computing and analytics
Installation and Compatibility Notes
This product is registered ECC server memory, not standard desktop UDIMM memory. Before installation, verify that the system supports DDR5 RDIMMs, the 128GB module capacity, and the specified rank configuration.
- Do not mix RDIMMs with UDIMMs in a configuration that does not support such mixing.
- Follow the manufacturer's memory-slot population order.
- Check restrictions on mixing rank, organization, capacity, and module technology.
- Actual operating speed may be lower than 4800 MT/s depending on the processor and installed memory configuration.
- Some systems impose specific compatibility requirements for high-capacity or 3DS memory modules.
Why Choose Dell AC448843 128GB RAM?
Dell AC448843 offers a high-capacity DDR5 memory option for supported enterprise platforms that require 128GB ECC Registered DIMMs. Its capacity, error-correction support, and registered design make it suitable for demanding server workloads when the module matches the system's validated memory specifications.
Frequently Asked Questions
1. What is the capacity of Dell AC448843?
It is a 128GB memory module.
2. What is the speed of this memory?
It is rated at DDR5-4800, equivalent to 4800 MT/s.
3. Does this RAM support ECC?
Yes. Published specifications identify AC448843 as ECC Registered DIMM memory.
4. What does 4Rx4 mean?
4Rx4 indicates a quad-rank module using x4-organized DRAM devices.
5. Can I use this RAM in a regular desktop computer?
Generally, no. This is registered ECC server memory and requires a compatible platform. Most consumer desktop systems use unbuffered UDIMM memory.
6. Will it run at 4800 MT/s in every supported system?
Not necessarily. The operating data rate depends on the processor, system platform, and memory configuration.
7. What should I verify before buying?
Confirm the system model, supported DDR5 RDIMM capacity, rank configuration, memory population rules, and exact Dell part number.
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