SPS-DIMM, 128GB PC5-4800B-R, 4Gx4

Engineered for the most demanding enterprise workloads, this HPE 128GB DDR5-4800 registered memory kit delivers exceptional bandwidth and reliability. With a total capacity of 128GB across four 32GB modules, it provides the headroom needed for virtualization, in-memory databases, and high-performance computing. Operating at 4800 MT/s with ECC and on-die error correction, it ensures data integrity even under continuous load. The PC5-4800B-R designation confirms compliance with JEDEC standards for registered DDR5 modules, making it a perfect fit for HPE ProLiant servers and other compatible platforms.

Overview

This memory kit consists of four 32GB DDR5 RDIMMs, each featuring a 288-pin configuration and operating at 1.1V for improved energy efficiency compared to previous generations. The modules are built with 4Gx4 DRAM chips, providing a balance of density and performance. Registered (buffered) design reduces electrical load on the memory controller, enabling higher capacities and stability in multi-slot server configurations. ECC technology detects and corrects single-bit errors, while on-die ECC further enhances reliability. The kit is ideal for upgrading HPE servers to meet the memory demands of modern data centers.

What stands out

• Massive 128GB total capacity (4x 32GB) for memory-intensive applications
• DDR5-4800 speed delivers up to 38.4 GB/s bandwidth per module
• ECC and on-die ECC ensure data integrity and system stability
• Registered (RDIMM) design supports high-density server configurations
• Low 1.1V operating voltage reduces power consumption
• JEDEC-compliant PC5-4800B-R standard for broad compatibility

Technical details

• Brand: HPE
• Model: P56154-001
• MPN: P56154-001
• Memory type: DDR5
• Module type: RDIMM
• Capacity: 128 GB (4x 32GB)
• Speed: 4800 MHz (PC5-4800)
• CAS latency: CL40
• Memory voltage: 1.1V
• Memory ranking: 2Rx4
• Memory form factor: 288-pin DIMM
• Component for: Server
• ECC: Yes
• On-Die ECC: Yes
• Buffered memory type: Registered (buffered)
• Memory layout: 4 x 32 GB
• Memory data transfer rate: 4800 MT/s
• SPD profile: Yes
• Country of origin: China
• Product colour: Green

Our verdict

For enterprises seeking to maximize memory capacity and performance in HPE servers, this 128GB DDR5-4800 registered memory kit is an excellent choice. Its combination of high density, ECC reliability, and energy efficiency makes it a future-proof investment for demanding data center environments.