• HPE P64709-B21 128GB DDR5-5600 RDIMM green circuit board with gold contacts
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HPE

HPE P64709-B21 | 128GB DDR5-5600 RDIMM 3DS, 4Rx4, ECC Registered, CAS 52-45-45

P64709-B21

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Description

High‑capacity DDR5 RDIMM leveraging 3DS stacking to deliver 128GB per module with robust ECC and register/buffer for server stability. Rated at DDR5‑5600 with tight primary timings, it is ideal for memory‑intensive virtualized, database, and in‑memory analytics workloads on supported DDR5 server platforms.

Features

128GB per DIMM enables high total system memory footprints
- DDR5‑5600 bandwidth for data‑hungry applications
- ECC Registered design for reliability and stability
- 3DS stacking technology to achieve large capacities in standard RDIMM footprint

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Capacity: 128GB (1 x 128GB)
- Memory type: DDR5 RDIMM (Registered, ECC)
- Data rate: DDR5‑5600 MT/s
- Timings: CAS 52‑45‑45
- Rank/width: 4Rx4
- 3DS (3D stacked) for high density
- Voltage: 1.1V nominal
- Module pins: 288‑pin RDIMM
- Platform: Server/Workstation DDR5 RDIMM (not compatible with UDIMM/SO‑DIMM slots)

FAQs

Q: Is this module compatible with desktop motherboards?
A: No. It is an ECC Registered RDIMM for servers and workstations that require DDR5 RDIMMs.

Q: Can I mix this 3DS RDIMM with non‑3DS RDIMMs?
A: Mixing may be limited or unsupported on some platforms. Check the server’s memory population rules and QVL.

Q: What happens if I mix different speeds?
A: Memory will operate at the lowest common speed and timings supported by the platform and modules.

Q: Do I need to install modules in pairs?
A: Follow your server’s channel population guidelines to balance channels for best performance.

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