Kingston KSM32RS4/32HCR 32GB DDR4-3200 ECC Registered Server DIMM
Overview
The Kingston KSM32RS4/32HCR is a 32GB DDR4-3200 ECC Registered (RDIMM) memory module built for 1-socket and 2-socket server platforms where data integrity and validated reliability are non-negotiable. Running at 3200 MT/s with CL22 latency on a 288-pin DIMM footprint, this module fits the performance bracket of current-generation Xeon Scalable and EPYC server platforms. If you're building out a server memory configuration for a surveillance NVR stack, enterprise application server, or virtualization host, this is the module class to evaluate.
The KSM32RS4/32HCR uses a single-rank (1Rx4) x4-wide SDRAM organization in a 4096M x 72 configuration, with Hynix C Rambus register components — a specific die and register pairing that matters for server OEM memory qualification lists. Kingston's server-class modules are manufactured to JEDEC standards and carry ECC error detection and correction, meaning single-bit memory errors are detected and corrected in-flight rather than silently corrupting application state.
Key Features
- 32GB Capacity per Slot: A single 32GB module gives you meaningful per-slot density without forcing full-population across all DIMM slots — useful when you're scaling memory incrementally or leaving headroom for future expansion in a dual-socket platform.
- DDR4-3200 (3200 MT/s): Operates at the highest native DDR4 speed tier, which translates to improved memory bandwidth for workloads that are bandwidth-sensitive — video analytics processing, database query buffers, and VM memory ballooning all benefit versus DDR4-2666 or DDR4-2933 modules in the same slots.
- ECC Error Correction: Single-bit errors are corrected in real time; multi-bit errors are detected and flagged. On a surveillance server running 24/7, undetected memory corruption is a silent failure mode — ECC eliminates that risk without any application-level overhead.
- Registered (Buffered) Design: The Rambus register on the DIMM buffers address and command signals from the memory controller, reducing electrical load on the bus. This is what allows high-density server configurations (multi-DIMM-per-channel) to remain stable — unbuffered DIMMs can't do this at scale.
- 1Rx4 Single-Rank Organization: Single-rank modules allow the memory controller to switch between ranks efficiently. In a mixed-population scenario (some slots single-rank, some dual-rank), single-rank modules may run at higher validated speeds on certain platforms — check your server's memory population guide to confirm.
- CL22 Latency at 3200 MT/s: CL22 is the standard latency bin for DDR4-3200 server modules. The row cycle time of 45.75 ns and row active time of 32 ns are within JEDEC spec — no exotic sub-timing required, meaning this module will POST and pass memory validation on any qualified platform without manual XMP/EXPO overrides (which are irrelevant on registered server memory anyway).
- 1.2V Operating Voltage: Standard DDR4 voltage — no special power delivery required from the server's memory voltage regulator. VPP (programming power) is 2.5V, also standard. No configuration changes needed to the platform's power delivery.
- Gold Lead Plating: Gold contacts provide better oxidation resistance compared to tin over extended deployment lifespans, particularly relevant in data center environments where modules may be installed for 5+ years without reseating.
- JEDEC Standard Compliant: Conforms to JEDEC SPD standards, so the server's BIOS will correctly identify the module's speed, timing, and voltage requirements at POST without any manual intervention.
Integration & Compatibility
This module is designed for server platforms requiring DDR4 RDIMM support — primarily Intel Xeon Scalable (Ice Lake, Cascade Lake) and AMD EPYC (Rome, Milan) platforms. The 1Rx4 rank configuration and Hynix C Rambus register are specific qualifications that matter when cross-referencing against server OEM HCLs (Hardware Compatibility Lists). Before deploying in a production server, verify the KSM32RS4/32HCR appears on your server vendor's memory qualification list for the specific system model and BIOS revision. Kingston publishes a memory configurator tool at their site for this cross-reference. For network video recorders and surveillance servers that use standard ATX or rack server motherboards with DDR4 RDIMM slots, this module fits deployments where the NVR platform is built on server-grade hardware rather than consumer desktop components.
Pairing multiple units of this module follows standard DDR4 population rules — consult your platform's memory population guide for dual-channel, quad-channel, or octa-channel configurations. Mismatched population (e.g., odd numbers of modules or mixing ranks without OEM guidance) can cause the platform to fall back to lower-performance memory modes. For server and storage configurations, matched-pair or matched-quad purchases are common for this density class.
Frequently Asked Questions
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