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Cisco

Cisco HX-MP-128GS-A0 | Persistent Memory Module | 128GB | 2666 MT/s | DDR4 | 288-pin DIMM | App Direct & Memory Mode

SKU:HX-MP-128GS-A0

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Description

128GB persistent memory module operating at 2666 MT/s over a DDR4 DIMM interface, designed to expand server memory capacity with byte-addressable, non-volatile media. Ideal for in-memory databases, virtualization density, and analytics, it supports App Direct for persistent namespaces and Memory Mode to enlarge volatile memory pools alongside DRAM. Requires a compatible platform with BIOS/firmware enabling and OS support for persistent memory.

Features

- Expands memory capacity beyond DRAM limits
- Persistent storage of data in App Direct mode
- 2666 MT/s DDR4 interface for low-latency access relative to SSDs
- Operates alongside DRAM for flexible configurations
- Optimized for in-memory and data-intensive workloads
- Enterprise manageability with platform/OS tooling

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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FAQs

Technical Specifications

FAQs

Q: Is this standard DRAM?
A: No. It is persistent memory that uses a DDR4 DIMM interface but is not DRAM; it complements DRAM for larger memory capacity and persistent datasets.

Q: Can I mix this with DRAM?
A: Yes, most platforms support PMem with RDIMMs/LRDIMMs following specific slot population and ratio rules. Consult your server’s population guide.

Q: What servers and CPUs are compatible?
A: Servers based on Intel Xeon Scalable platforms that explicitly list persistent memory support. Check the server HCL and firmware requirements.

Q: What is the difference between App Direct and Memory Mode?
A: App Direct exposes persistent namespaces for applications/filesystems; Memory Mode treats PMem as large volatile memory while DRAM acts as a cache.

Q: Do I need pairs or a specific ratio?
A: Most platforms require symmetric population across memory channels and enforce PMem:DRAM capacity ratios (e.g., 1:1 or 1:4). Follow the vendor guide.

Q: Which operating systems support it?
A: Major enterprise OSes and hypervisors support PMem with appropriate drivers and versions. Verify specific OS/hypervisor releases for PMem features.

Q: Can I use it like an SSD?
A: Not as a block device by default; it is byte-addressable. Use App Direct with DAX-aware filesystems or applications designed for persistent memory.

Q: Are special BIOS settings required?
A: Yes. Persistent memory regions and modes must be configured in BIOS/UEFI or via management tools prior to OS deployment.

Technical Specifications

- Capacity: 128GB per module
- Data rate: 2666 MT/s
- Interface: DDR4 DIMM (persistent memory class)
- Form factor: 288-pin DIMM
- Module type: Persistent Memory (PMem), not standard DRAM
- Operating modes: App Direct (persistent), Memory Mode (volatile expansion)
- Typical platform support: Intel Xeon Scalable systems with PMem support (check server HCL/BIOS)
- Population: Used alongside DDR4 RDIMMs/LRDIMMs per platform guidelines
- Use cases: In-memory DBs, virtualization, caching, analytics
- Persistence: Retains data across power cycles in App Direct mode
- Relative latency: Higher than DRAM, lower than NVMe/SSD storage
- Management: Supported by platform tools/OS utilities (e.g., ipmctl, OS PMem drivers)

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