The SK hynix HMAA4GR7CJR4N-XN is a 32GB DDR4-3200 ECC Registered DIMM (RDIMM) aimed at enterprise server fleets, data centers, virtualization nodes, and database or storage deployments. For resellers and system integrators, this part number addresses ongoing refresh and expansion demand across the installed base of DDR4-generation platforms that require registered memory with error correction. Please note that RDIMMs are generation-specific: they cannot be combined with DDR5 modules or unbuffered desktop memory, so we advise verifying the target platform’s supported memory type before placing bulk orders.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | HMAA4GR7CJR4N-XN |
| Brand | SK hynix |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) — required for most 2-socket Intel Xeon and AMD EPYC server platforms of the DDR4 generation |
| Capacity | 32GB |
| Data Rate | 3200 MT/s (actual speed may downclock depending on CPU and population) |
| Speed Grade | PC4-25600R |
| Rank Configuration | 2Rx4 (Dual Rank) |
| Error Correction | ECC Supported |
| CAS Latency | CL22 |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| DRAM Organization | x4-based DRAM |
| Data Width | 72-bit (64-bit Data + 8-bit ECC) |
| Memory Bandwidth | 25.6 GB/s (per module, nominal) |
| Compliance | JEDEC DDR4 Standard |
| Operating Temperature | 0°C to 85°C |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, Virtualization Platforms, Database Servers, and Storage Systems |
Sourcing & Compatibility Notes for B2B Buyers
- This ECC RDIMM fits only server/workstation boards supporting registered DDR4 — it is incompatible with consumer desktops and will not operate alongside DDR5, mismatched LRDIMM configurations, or unbuffered modules on most platforms. Confirm end-customer platform requirements before committing to volume purchases.
- Within the SK hynix DDR4 RDIMM lineup, this dual-rank (2Rx4) 32GB module offers a strong density-per-DIMM balance, making it a high-turn item for integrators building virtualization hosts and cache/database tiers where balanced DIMM-per-channel population maximizes effective bandwidth.
- For multi-channel deployments, we recommend mixing identical model and rank modules per channel to prevent downclocking below 3200 MT/s. Integrators should cross-check the server OEM’s qualified memory list (QVL) for this speed grade when specifying builds for clients.
- Stock is supplied in consistent date-code batches where possible, supporting uniform configuration across multi-unit server orders. All units are factory-original, and export documentation covering CE, FCC, and RoHS conformity is available for overseas shipments.
- Standard warranty and RMA handling applies to all wholesale orders; defective units are processed through our dedicated B2B after-sales channel to minimize downtime for your deployment schedules.
Wholesale & Procurement Notes
- MOQ is negotiable depending on configuration and destination market.
- Tiered volume pricing available — request a wholesale quote for current pricing on your target quantities.
- Typical lead time: in-stock items ship within 1–3 business days; larger volume orders may require 5–10 business days for allocation.
- Packing & shipping options: anti-static bulk packaging, retail-boxed units, or custom kitting; air freight, express courier, and consolidated sea freight supported.
- RMA window: 12-month warranty with a 30-day DOA replacement policy for verified faulty units.
