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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 128 GB |
| Memory Technology | DDR4 |
| Product Voltage | 1.2V |
| RAM Speed | 1600MHz |
| RAM Standard | DDR4-1600/PC4-12800 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL11 |
| Rank | Quad Rank x4 |
| Quantity of Pins | 276-pin |
| RAM Genre | CDIMM |
Designed for enterprise servers, this 128GB DDR4-1600 Registered DIMM with ECC delivers exceptional data integrity and reliability for memory-intensive workloads such as virtualization and in-memory databases. Its Quad Rank x4 configuration maximizes capacity density per channel, while the registered signal type and CL11 latency ensure stable, efficient operation under heavy multi-DIMM loads.
1. A 128GB capacity per module dramatically increases memory density, allowing virtualization hosts to run more guest machines concurrently without encountering memory bottlenecks.
2. ECC protection actively corrects single-bit errors in real time, safeguarding transactional databases and financial computations from silent data corruption.
3. Registered signal buffering stabilizes command and address lines under heavy loads, enabling fully populated server boards to operate reliably around the clock.
4. Quad Rank x4 organization packs four independent rank groups into one DIMM, sustaining high channel utilization and throughput for large in-memory analytics.
5. 1.2V low-voltage operation trims overall rack power draw and cooling demands, contributing to lower TCO in dense data center environments while preserving enterprise-grade stability.
Data center infrastructure demands absolute integrity, unshakable stability, and enormous capacity—requirements that make the M352AAK40BB0-CK0 an indispensable asset. Engineered as a server-class DDR4 Registered ECC module, its four defining characteristics directly address the critical pain points of enterprise virtualization and in-memory database workloads. The 128GB density, achieved through a Quad Rank x4 organization, lets you pack massive virtual machine clusters onto a single node, eliminating forklift upgrades and simplifying scaling for dense private clouds. When you run live migration across a hypervisor fleet, the Registered buffer architecture maintains clean signal integrity across heavily populated memory channels, preventing the sudden host crashes that can cascade through your VM stack during peak operations. Meanwhile, ECC scrubbing silently corrects bit-flips induced by ambient radiation—a non-negotiable shield against silent data corruption when processing financial transactions inside an in-memory database like Redis or SAP HANA, where a single corrupted entry can mean revenue loss or faulty real-time analytics. The Quad Rank interleaving further amplifies concurrent access efficiency, reducing latency spikes as hundreds of virtual machines hammer the memory bus simultaneously. At a cool 1.2V, it also helps cap your thermal footprint, assuring that denser consolidation never compromises long-term reliability in mission-critical environments.
General Virtualization
Populate a dual‑socket server with eight 128GB modules (1TB total) across all memory channels to ensure balanced bandwidth. Using one quad‑rank registered DIMM per channel provides generous capacity for overcommitting guest memory while maintaining the full 1600MT/s speed. Identical ECC modules eliminate stability risks in mixed‑workload environments.
In‑Memory Database
Configure 12 modules per CPU (1.5TB) symmetrically across all six memory channels to deliver low‑latency, high‑capacity access for in‑memory datasets like SAP HANA. The 128GB density scales a single node to multi‑terabyte footprints without compromising speed. CL11 latency and end‑to‑end ECC protection guarantee data integrity for critical transactional workloads.
High‑Performance Computing
Install one 128GB DIMM per channel to achieve maximum memory bandwidth under heavy floating‑point and parallel computing loads. Although quad‑rank modules can limit speed when channels are fully populated, a single‑module‑per‑channel configuration preserves rated 1600MT/s performance. This yields up to 1TB per socket, ideal for large‑scale simulations and model training.
Rigorously tested for server use: compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650 V2, and more.
Q: Can I mix this M352AAK40BB0-CK0 with other memory modules of different brands or speeds?
A: Mixing is not recommended. Registered ECC modules require identical specs for stability; mismatched brands, speeds, or ranks may cause system errors or fail to POST in Cisco UCS environments.
Q: Is this memory compatible with my system?
A: This is a Cisco CDIMM for specific UCS C-Series/B-Series servers. Verify compatibility against the official Cisco Hardware Compatibility List and ensure your server supports DDR4-1600 Registered DIMMs with Quad Rank x4 organization.
Q: What is the recommended DIMM population order for optimal performance?
A: Populate equal DIMMs per memory channel, starting from the farthest slot from the CPU. Refer to the server’s memory population guide; Quad Rank DIMMs often require specific slots and may limit maximum speed.
Q: Does this module support overclocking or XMP profiles?
A: No. As an enterprise Registered ECC DIMM, it operates strictly at JEDEC-standard DDR4-1600 with CL11 timing. Overclocking and XMP are not supported to ensure data integrity and platform stability.
Q: What warranty and typical failure rate can I expect?
A: This module comes with a one-year warranty. Typical failure rate is extremely low due to rigorous screening for enterprise-grade reliability, with an annualized failure rate well under 0.5% under normal operation.