The SK hynix HMAG78EXNRA084N is a 16GB DDR4-3200 ECC registered DIMM (RDIMM) aimed at enterprise server builds, data center refresh cycles, cloud platform deployments, virtualization hosts, and storage systems. As a PC4-25600R dual-rank module, it is a high-turnover SKU for resellers stocking DDR4-generation server memory and for system integrators configuring or expanding platforms that require registered memory with error correction. Note that RDIMMs must be deployed on DDR4-compatible platforms and cannot be mixed with DDR5 or unbuffered desktop memory.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model Number | HMAG78EXNRA084N |
| Brand | SK hynix |
| Memory Type | DDR4 ECC RDIMM (Registered DIMM) |
| Capacity | 16GB |
| Data Rate | 3200 MT/s (may downclock depending on CPU and platform support) |
| Speed Grade | PC4-25600R |
| Rank Configuration | 2Rx8 (Dual Rank, x8-based DRAM) |
| Error Correction | ECC Supported (requires ECC-capable platform) |
| CAS Latency | CL22 |
| Operating Voltage | 1.2V |
| Pin Count | 288-pin |
| Form Factor | RDIMM (Registered DIMM) |
| Data Width | 72-bit (64-bit Data + 8-bit ECC) |
| Memory Bandwidth | 25.6 GB/s |
| Compliance | JEDEC DDR4 Standard |
| Operating Temperature | 0°C to 85°C |
| Applications | Enterprise Servers, Data Centers, Cloud Computing, Virtualization Platforms, Storage Systems |
Wholesale Supply Advantages
- Batch consistency: modules are supplied from the same production batch and date code wherever possible, ensuring matching part number, rank configuration, and speed grade across multi-DIMM deployments — critical for stable operation on fully populated channels.
- Stock and lead times: volume stock is maintained for this SKU with fast dispatch on in-line orders; bulk allocations and scheduled deliveries can be arranged for integrators running phased server rollouts.
- Warranty and RMA: supplier-backed warranty coverage with a defined RMA channel, replacement or credit handling, and traceable serials for efficient after-sales processing.
- Export compliance: shipments are supported with CE, FCC, and RoHS documentation suitable for cross-border resale and procurement audit requirements.
- Suitable buyers: IT distributors, VARs, system integrators, and data center procurement teams populating DDR4 server platforms at scale.
Good to know
- As a registered ECC module with a 72-bit data path, this RDIMM is intended for server platforms only — advise customers to verify motherboard and CPU support for DDR4 RDIMMs, since mixing RDIMMs with UDIMMs or LRDIMMs on the same channel is generally not supported.
- Within the DDR4 RDIMM family, the dual-rank 2Rx8 configuration at 3200 MT/s delivers a solid density-to-performance balance for mainstream virtualization and storage workloads; check each platform’s memory population guidelines, as supported speeds can vary by rank count and DIMMs per channel.
- For resale and deployment, ordering modules with identical part number, rank configuration, and speed grade helps ensure stable operation across populated channels and simplifies warranty handling.
Wholesale & Procurement Notes
- MOQ negotiable depending on stock position and destination market.
- Tiered volume pricing available — request a wholesale quote for quantities beyond listed tiers.
- Typical lead time: 3–7 business days for stocked quantities; longer for scheduled bulk shipments.
- Packing options include anti-static bulk trays and neutral or OEM-labeled cartons; air and sea freight supported with export documentation.
- RMA window: 12 months from invoice date, subject to supplier warranty terms.
